20774160

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:134

約数の個数: 240

約数和(自身を含む): 79155648

約数和(自身を除く): 58381488

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 43, 44, 45, 48, 55, 60, 61, 66, 72, 80, 86, 88, 90, 99, 110, 120, 122, 129, 132, 144, 165, 172, 176, 180, 183, 198, 215, 220, 240, 244, 258, 264, 305, 330, 344, 360, 366, 387, 396, 430, 440, 473, 488, 495, 516, 528, 549, 610, 645, 660, 671, 688, 720, 732, 774, 792, 860, 880, 915, 946, 976, 990, 1032, 1098, 1220, 1290, 1320, 1342, 1419, 1464, 1548, 1584, 1720, 1830, 1892, 1935, 1980, 2013, 2064, 2196, 2365, 2440, 2580, 2623, 2640, 2684, 2745, 2838, 2928, 3096, 3355, 3440, 3660, 3784, 3870, 3960, 4026, 4257, 4392, 4730, 4880, 5160, 5246, 5368, 5490, 5676, 6039, 6192, 6710, 7095, 7320, 7568, 7740, 7869, 7920, 8052, 8514, 8784, 9460, 10065, 10320, 10492, 10736, 10980, 11352, 12078, 13115, 13420, 14190, 14640, 15480, 15738, 16104, 17028, 18920, 20130, 20984, 21285, 21960, 22704, 23607, 24156, 26230, 26840, 28380, 28853, 30195, 30960, 31476, 32208, 34056, 37840, 39345, 40260, 41968, 42570, 43920, 47214, 48312, 52460, 53680, 56760, 57706, 60390, 62952, 68112, 78690, 80520, 85140, 86559, 94428, 96624, 104920, 113520, 115412, 118035, 120780, 125904, 144265, 157380, 161040, 170280, 173118, 188856, 209840, 230824, 236070, 241560, 259677, 288530, 314760, 340560, 346236, 377712, 432795, 461648, 472140, 483120, 519354, 577060, 629520, 692472, 865590, 944280, 1038708, 1154120, 1298385, 1384944, 1731180, 1888560, 2077416, 2308240, 2596770, 3462360, 4154832, 5193540, 6924720, 10387080, 20774160]

約数ペア:

[(1, 20774160), (2, 10387080), (3, 6924720), (4, 5193540), (5, 4154832), (6, 3462360), (8, 2596770), (9, 2308240), (10, 2077416), (11, 1888560), (12, 1731180), (15, 1384944), (16, 1298385), (18, 1154120), (20, 1038708), (22, 944280), (24, 865590), (30, 692472), (33, 629520), (36, 577060), (40, 519354), (43, 483120), (44, 472140), (45, 461648), (48, 432795), (55, 377712), (60, 346236), (61, 340560), (66, 314760), (72, 288530), (80, 259677), (86, 241560), (88, 236070), (90, 230824), (99, 209840), (110, 188856), (120, 173118), (122, 170280), (129, 161040), (132, 157380), (144, 144265), (165, 125904), (172, 120780), (176, 118035), (180, 115412), (183, 113520), (198, 104920), (215, 96624), (220, 94428), (240, 86559), (244, 85140), (258, 80520), (264, 78690), (305, 68112), (330, 62952), (344, 60390), (360, 57706), (366, 56760), (387, 53680), (396, 52460), (430, 48312), (440, 47214), (473, 43920), (488, 42570), (495, 41968), (516, 40260), (528, 39345), (549, 37840), (610, 34056), (645, 32208), (660, 31476), (671, 30960), (688, 30195), (720, 28853), (732, 28380), (774, 26840), (792, 26230), (860, 24156), (880, 23607), (915, 22704), (946, 21960), (976, 21285), (990, 20984), (1032, 20130), (1098, 18920), (1220, 17028), (1290, 16104), (1320, 15738), (1342, 15480), (1419, 14640), (1464, 14190), (1548, 13420), (1584, 13115), (1720, 12078), (1830, 11352), (1892, 10980), (1935, 10736), (1980, 10492), (2013, 10320), (2064, 10065), (2196, 9460), (2365, 8784), (2440, 8514), (2580, 8052), (2623, 7920), (2640, 7869), (2684, 7740), (2745, 7568), (2838, 7320), (2928, 7095), (3096, 6710), (3355, 6192), (3440, 6039), (3660, 5676), (3784, 5490), (3870, 5368), (3960, 5246), (4026, 5160), (4257, 4880), (4392, 4730)]