21556080

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:93

約数の個数: 360

約数和(自身を含む): 92619072

約数和(自身を除く): 71062992

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 47, 48, 49, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 94, 98, 104, 105, 112, 117, 120, 126, 130, 140, 141, 144, 147, 156, 168, 180, 182, 188, 195, 196, 208, 210, 234, 235, 240, 245, 252, 260, 273, 280, 282, 294, 312, 315, 329, 336, 360, 364, 376, 390, 392, 420, 423, 441, 455, 468, 470, 490, 504, 520, 546, 560, 564, 585, 588, 611, 624, 630, 637, 658, 705, 720, 728, 735, 752, 780, 784, 819, 840, 846, 882, 910, 936, 940, 980, 987, 1008, 1040, 1092, 1128, 1170, 1176, 1222, 1260, 1274, 1316, 1365, 1410, 1456, 1470, 1560, 1638, 1645, 1680, 1692, 1764, 1820, 1833, 1872, 1880, 1911, 1960, 1974, 2115, 2184, 2205, 2256, 2303, 2340, 2352, 2444, 2520, 2548, 2632, 2730, 2820, 2940, 2961, 3055, 3120, 3185, 3276, 3290, 3384, 3528, 3640, 3666, 3760, 3822, 3920, 3948, 4095, 4230, 4277, 4368, 4410, 4606, 4680, 4888, 4935, 5040, 5096, 5264, 5460, 5499, 5640, 5733, 5880, 5922, 6110, 6370, 6552, 6580, 6768, 6909, 7056, 7280, 7332, 7644, 7896, 8190, 8460, 8554, 8820, 9165, 9212, 9360, 9555, 9776, 9870, 10192, 10920, 10998, 11280, 11466, 11515, 11760, 11844, 12220, 12740, 12831, 13104, 13160, 13818, 14664, 14805, 15288, 15792, 16380, 16920, 17108, 17640, 18330, 18424, 19110, 19740, 20727, 21385, 21840, 21996, 22932, 23030, 23688, 24440, 25480, 25662, 26320, 27495, 27636, 28665, 29328, 29610, 29939, 30576, 32760, 33840, 34216, 34545, 35280, 36660, 36848, 38220, 38493, 39480, 41454, 42770, 43992, 45864, 46060, 47376, 48880, 50960, 51324, 54990, 55272, 57330, 59220, 59878, 64155, 65520, 68432, 69090, 73320, 76440, 76986, 78960, 82908, 85540, 87984, 89817, 91728, 92120, 102648, 103635, 109980, 110544, 114660, 118440, 119756, 128310, 138180, 146640, 149695, 152880, 153972, 165816, 171080, 179634, 184240, 192465, 205296, 207270, 219960, 229320, 236880, 239512, 256620, 269451, 276360, 299390, 307944, 331632, 342160, 359268, 384930, 414540, 439920, 449085, 458640, 479024, 513240, 538902, 552720, 598780, 615888, 718536, 769860, 829080, 898170, 1026480, 1077804, 1197560, 1347255, 1437072, 1539720, 1658160, 1796340, 2155608, 2395120, 2694510, 3079440, 3592680, 4311216, 5389020, 7185360, 10778040, 21556080]

約数ペア:

[(1, 21556080), (2, 10778040), (3, 7185360), (4, 5389020), (5, 4311216), (6, 3592680), (7, 3079440), (8, 2694510), (9, 2395120), (10, 2155608), (12, 1796340), (13, 1658160), (14, 1539720), (15, 1437072), (16, 1347255), (18, 1197560), (20, 1077804), (21, 1026480), (24, 898170), (26, 829080), (28, 769860), (30, 718536), (35, 615888), (36, 598780), (39, 552720), (40, 538902), (42, 513240), (45, 479024), (47, 458640), (48, 449085), (49, 439920), (52, 414540), (56, 384930), (60, 359268), (63, 342160), (65, 331632), (70, 307944), (72, 299390), (78, 276360), (80, 269451), (84, 256620), (90, 239512), (91, 236880), (94, 229320), (98, 219960), (104, 207270), (105, 205296), (112, 192465), (117, 184240), (120, 179634), (126, 171080), (130, 165816), (140, 153972), (141, 152880), (144, 149695), (147, 146640), (156, 138180), (168, 128310), (180, 119756), (182, 118440), (188, 114660), (195, 110544), (196, 109980), (208, 103635), (210, 102648), (234, 92120), (235, 91728), (240, 89817), (245, 87984), (252, 85540), (260, 82908), (273, 78960), (280, 76986), (282, 76440), (294, 73320), (312, 69090), (315, 68432), (329, 65520), (336, 64155), (360, 59878), (364, 59220), (376, 57330), (390, 55272), (392, 54990), (420, 51324), (423, 50960), (441, 48880), (455, 47376), (468, 46060), (470, 45864), (490, 43992), (504, 42770), (520, 41454), (546, 39480), (560, 38493), (564, 38220), (585, 36848), (588, 36660), (611, 35280), (624, 34545), (630, 34216), (637, 33840), (658, 32760), (705, 30576), (720, 29939), (728, 29610), (735, 29328), (752, 28665), (780, 27636), (784, 27495), (819, 26320), (840, 25662), (846, 25480), (882, 24440), (910, 23688), (936, 23030), (940, 22932), (980, 21996), (987, 21840), (1008, 21385), (1040, 20727), (1092, 19740), (1128, 19110), (1170, 18424), (1176, 18330), (1222, 17640), (1260, 17108), (1274, 16920), (1316, 16380), (1365, 15792), (1410, 15288), (1456, 14805), (1470, 14664), (1560, 13818), (1638, 13160), (1645, 13104), (1680, 12831), (1692, 12740), (1764, 12220), (1820, 11844), (1833, 11760), (1872, 11515), (1880, 11466), (1911, 11280), (1960, 10998), (1974, 10920), (2115, 10192), (2184, 9870), (2205, 9776), (2256, 9555), (2303, 9360), (2340, 9212), (2352, 9165), (2444, 8820), (2520, 8554), (2548, 8460), (2632, 8190), (2730, 7896), (2820, 7644), (2940, 7332), (2961, 7280), (3055, 7056), (3120, 6909), (3185, 6768), (3276, 6580), (3290, 6552), (3384, 6370), (3528, 6110), (3640, 5922), (3666, 5880), (3760, 5733), (3822, 5640), (3920, 5499), (3948, 5460), (4095, 5264), (4230, 5096), (4277, 5040), (4368, 4935), (4410, 4888), (4606, 4680)]