20718818640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{4153}}^1$

素因数の和:4239

約数の個数: 360

約数和(自身を含む): 77201043192

約数和(自身を除く): 56482224552

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 41, 45, 48, 52, 60, 65, 72, 78, 80, 82, 90, 104, 117, 120, 123, 130, 144, 156, 164, 169, 180, 195, 205, 208, 234, 240, 246, 260, 312, 328, 338, 360, 369, 390, 410, 468, 492, 507, 520, 533, 585, 615, 624, 656, 676, 720, 738, 780, 820, 845, 936, 984, 1014, 1040, 1066, 1170, 1230, 1352, 1476, 1521, 1560, 1599, 1640, 1690, 1845, 1872, 1968, 2028, 2132, 2340, 2460, 2535, 2665, 2704, 2952, 3042, 3120, 3198, 3280, 3380, 3690, 4056, 4153, 4264, 4680, 4797, 4920, 5070, 5330, 5904, 6084, 6396, 6760, 6929, 7380, 7605, 7995, 8112, 8306, 8528, 9360, 9594, 9840, 10140, 10660, 12168, 12459, 12792, 13520, 13858, 14760, 15210, 15990, 16612, 19188, 20280, 20765, 20787, 21320, 23985, 24336, 24918, 25584, 27716, 29520, 30420, 31980, 33224, 34645, 37377, 38376, 40560, 41530, 41574, 42640, 47970, 49836, 53989, 55432, 60840, 62295, 62361, 63960, 66448, 69290, 74754, 76752, 83060, 83148, 95940, 99672, 103935, 107978, 110864, 121680, 124590, 124722, 127920, 138580, 149508, 161967, 166120, 166296, 170273, 186885, 191880, 199344, 207870, 215956, 249180, 249444, 269945, 277160, 299016, 311805, 323934, 332240, 332592, 340546, 373770, 383760, 415740, 431912, 485901, 498360, 498888, 510819, 539890, 554320, 598032, 623610, 647868, 681092, 701857, 747540, 809835, 831480, 851365, 863824, 971802, 996720, 997776, 1021638, 1079780, 1247220, 1295736, 1362184, 1403714, 1495080, 1532457, 1619670, 1662960, 1702730, 1943604, 2043276, 2105571, 2159560, 2213549, 2429505, 2494440, 2554095, 2591472, 2724368, 2807428, 2990160, 3064914, 3239340, 3405460, 3509285, 3887208, 4086552, 4211142, 4319120, 4427098, 4859010, 4988880, 5108190, 5614856, 6129828, 6316713, 6478680, 6640647, 6810920, 7018570, 7662285, 7774416, 8173104, 8422284, 8854196, 9718020, 10216380, 10527855, 11067745, 11229712, 12259656, 12633426, 12957360, 13281294, 13621840, 14037140, 15324570, 16844568, 17708392, 19436040, 19921941, 20432760, 21055710, 22135490, 24519312, 25266852, 26562588, 28074280, 28776137, 30649140, 31583565, 33203235, 33689136, 35416784, 38872080, 39843882, 40865520, 42111420, 44270980, 50533704, 53125176, 56148560, 57552274, 61298280, 63167130, 66406470, 79687764, 84222840, 86328411, 88541960, 99609705, 101067408, 106250352, 115104548, 122596560, 126334260, 132812940, 143880685, 159375528, 168445680, 172656822, 177083920, 199219410, 230209096, 252668520, 258985233, 265625880, 287761370, 318751056, 345313644, 398438820, 431642055, 460418192, 505337040, 517970466, 531251760, 575522740, 690627288, 796877640, 863284110, 1035940932, 1151045480, 1294926165, 1381254576, 1593755280, 1726568220, 2071881864, 2302090960, 2589852330, 3453136440, 4143763728, 5179704660, 6906272880, 10359409320, 20718818640]

約数ペア:

[(1, 20718818640), (2, 10359409320), (3, 6906272880), (4, 5179704660), (5, 4143763728), (6, 3453136440), (8, 2589852330), (9, 2302090960), (10, 2071881864), (12, 1726568220), (13, 1593755280), (15, 1381254576), (16, 1294926165), (18, 1151045480), (20, 1035940932), (24, 863284110), (26, 796877640), (30, 690627288), (36, 575522740), (39, 531251760), (40, 517970466), (41, 505337040), (45, 460418192), (48, 431642055), (52, 398438820), (60, 345313644), (65, 318751056), (72, 287761370), (78, 265625880), (80, 258985233), (82, 252668520), (90, 230209096), (104, 199219410), (117, 177083920), (120, 172656822), (123, 168445680), (130, 159375528), (144, 143880685), (156, 132812940), (164, 126334260), (169, 122596560), (180, 115104548), (195, 106250352), (205, 101067408), (208, 99609705), (234, 88541960), (240, 86328411), (246, 84222840), (260, 79687764), (312, 66406470), (328, 63167130), (338, 61298280), (360, 57552274), (369, 56148560), (390, 53125176), (410, 50533704), (468, 44270980), (492, 42111420), (507, 40865520), (520, 39843882), (533, 38872080), (585, 35416784), (615, 33689136), (624, 33203235), (656, 31583565), (676, 30649140), (720, 28776137), (738, 28074280), (780, 26562588), (820, 25266852), (845, 24519312), (936, 22135490), (984, 21055710), (1014, 20432760), (1040, 19921941), (1066, 19436040), (1170, 17708392), (1230, 16844568), (1352, 15324570), (1476, 14037140), (1521, 13621840), (1560, 13281294), (1599, 12957360), (1640, 12633426), (1690, 12259656), (1845, 11229712), (1872, 11067745), (1968, 10527855), (2028, 10216380), (2132, 9718020), (2340, 8854196), (2460, 8422284), (2535, 8173104), (2665, 7774416), (2704, 7662285), (2952, 7018570), (3042, 6810920), (3120, 6640647), (3198, 6478680), (3280, 6316713), (3380, 6129828), (3690, 5614856), (4056, 5108190), (4153, 4988880), (4264, 4859010), (4680, 4427098), (4797, 4319120), (4920, 4211142), (5070, 4086552), (5330, 3887208), (5904, 3509285), (6084, 3405460), (6396, 3239340), (6760, 3064914), (6929, 2990160), (7380, 2807428), (7605, 2724368), (7995, 2591472), (8112, 2554095), (8306, 2494440), (8528, 2429505), (9360, 2213549), (9594, 2159560), (9840, 2105571), (10140, 2043276), (10660, 1943604), (12168, 1702730), (12459, 1662960), (12792, 1619670), (13520, 1532457), (13858, 1495080), (14760, 1403714), (15210, 1362184), (15990, 1295736), (16612, 1247220), (19188, 1079780), (20280, 1021638), (20765, 997776), (20787, 996720), (21320, 971802), (23985, 863824), (24336, 851365), (24918, 831480), (25584, 809835), (27716, 747540), (29520, 701857), (30420, 681092), (31980, 647868), (33224, 623610), (34645, 598032), (37377, 554320), (38376, 539890), (40560, 510819), (41530, 498888), (41574, 498360), (42640, 485901), (47970, 431912), (49836, 415740), (53989, 383760), (55432, 373770), (60840, 340546), (62295, 332592), (62361, 332240), (63960, 323934), (66448, 311805), (69290, 299016), (74754, 277160), (76752, 269945), (83060, 249444), (83148, 249180), (95940, 215956), (99672, 207870), (103935, 199344), (107978, 191880), (110864, 186885), (121680, 170273), (124590, 166296), (124722, 166120), (127920, 161967), (138580, 149508)]