820781640

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{719}}^1$

素因数の和:897

約数の個数: 256

約数和(自身を含む): 3151872000

約数和(自身を除く): 2331090360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 151, 168, 180, 189, 210, 216, 252, 270, 280, 302, 315, 360, 378, 420, 453, 504, 540, 604, 630, 719, 755, 756, 840, 906, 945, 1057, 1080, 1208, 1260, 1359, 1438, 1510, 1512, 1812, 1890, 2114, 2157, 2265, 2520, 2718, 2876, 3020, 3171, 3595, 3624, 3780, 4077, 4228, 4314, 4530, 5033, 5285, 5436, 5752, 6040, 6342, 6471, 6795, 7190, 7560, 8154, 8456, 8628, 9060, 9513, 10066, 10570, 10785, 10872, 12684, 12942, 13590, 14380, 15099, 15855, 16308, 17256, 18120, 19026, 19413, 20132, 20385, 21140, 21570, 25165, 25368, 25884, 27180, 28539, 28760, 30198, 31710, 32355, 32616, 38052, 38826, 40264, 40770, 42280, 43140, 45297, 47565, 50330, 51768, 54360, 57078, 60396, 63420, 64710, 75495, 76104, 77652, 81540, 86280, 90594, 95130, 97065, 100660, 108569, 114156, 120792, 126840, 129420, 135891, 142695, 150990, 155304, 163080, 181188, 190260, 194130, 201320, 217138, 226485, 228312, 258840, 271782, 285390, 301980, 325707, 362376, 380520, 388260, 434276, 452970, 542845, 543564, 570780, 603960, 651414, 679455, 759983, 776520, 868552, 905940, 977121, 1085690, 1087128, 1141560, 1302828, 1358910, 1519966, 1628535, 1811880, 1954242, 2171380, 2279949, 2605656, 2717820, 2931363, 3039932, 3257070, 3799915, 3908484, 4342760, 4559898, 4885605, 5435640, 5862726, 6079864, 6514140, 6839847, 7599830, 7816968, 9119796, 9771210, 11399745, 11725452, 13028280, 13679694, 14656815, 15199660, 18239592, 19542420, 20519541, 22799490, 23450904, 27359388, 29313630, 30399320, 34199235, 39084840, 41039082, 45598980, 54718776, 58627260, 68398470, 82078164, 91197960, 102597705, 117254520, 136796940, 164156328, 205195410, 273593880, 410390820, 820781640]

約数ペア:

[(1, 820781640), (2, 410390820), (3, 273593880), (4, 205195410), (5, 164156328), (6, 136796940), (7, 117254520), (8, 102597705), (9, 91197960), (10, 82078164), (12, 68398470), (14, 58627260), (15, 54718776), (18, 45598980), (20, 41039082), (21, 39084840), (24, 34199235), (27, 30399320), (28, 29313630), (30, 27359388), (35, 23450904), (36, 22799490), (40, 20519541), (42, 19542420), (45, 18239592), (54, 15199660), (56, 14656815), (60, 13679694), (63, 13028280), (70, 11725452), (72, 11399745), (84, 9771210), (90, 9119796), (105, 7816968), (108, 7599830), (120, 6839847), (126, 6514140), (135, 6079864), (140, 5862726), (151, 5435640), (168, 4885605), (180, 4559898), (189, 4342760), (210, 3908484), (216, 3799915), (252, 3257070), (270, 3039932), (280, 2931363), (302, 2717820), (315, 2605656), (360, 2279949), (378, 2171380), (420, 1954242), (453, 1811880), (504, 1628535), (540, 1519966), (604, 1358910), (630, 1302828), (719, 1141560), (755, 1087128), (756, 1085690), (840, 977121), (906, 905940), (945, 868552), (1057, 776520), (1080, 759983), (1208, 679455), (1260, 651414), (1359, 603960), (1438, 570780), (1510, 543564), (1512, 542845), (1812, 452970), (1890, 434276), (2114, 388260), (2157, 380520), (2265, 362376), (2520, 325707), (2718, 301980), (2876, 285390), (3020, 271782), (3171, 258840), (3595, 228312), (3624, 226485), (3780, 217138), (4077, 201320), (4228, 194130), (4314, 190260), (4530, 181188), (5033, 163080), (5285, 155304), (5436, 150990), (5752, 142695), (6040, 135891), (6342, 129420), (6471, 126840), (6795, 120792), (7190, 114156), (7560, 108569), (8154, 100660), (8456, 97065), (8628, 95130), (9060, 90594), (9513, 86280), (10066, 81540), (10570, 77652), (10785, 76104), (10872, 75495), (12684, 64710), (12942, 63420), (13590, 60396), (14380, 57078), (15099, 54360), (15855, 51768), (16308, 50330), (17256, 47565), (18120, 45297), (19026, 43140), (19413, 42280), (20132, 40770), (20385, 40264), (21140, 38826), (21570, 38052), (25165, 32616), (25368, 32355), (25884, 31710), (27180, 30198), (28539, 28760)]