81597880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{773}}^1$

素因数の和:833

約数の個数: 128

約数和(自身を含む): 234057600

約数和(自身を除く): 152459720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 29, 35, 40, 52, 56, 58, 65, 70, 91, 104, 116, 130, 140, 145, 182, 203, 232, 260, 280, 290, 364, 377, 406, 455, 520, 580, 728, 754, 773, 812, 910, 1015, 1160, 1508, 1546, 1624, 1820, 1885, 2030, 2639, 3016, 3092, 3640, 3770, 3865, 4060, 5278, 5411, 6184, 7540, 7730, 8120, 10049, 10556, 10822, 13195, 15080, 15460, 20098, 21112, 21644, 22417, 26390, 27055, 30920, 40196, 43288, 44834, 50245, 52780, 54110, 70343, 80392, 89668, 100490, 105560, 108220, 112085, 140686, 156919, 179336, 200980, 216440, 224170, 281372, 291421, 313838, 351715, 401960, 448340, 562744, 582842, 627676, 703430, 784595, 896680, 1165684, 1255352, 1406860, 1457105, 1569190, 2039947, 2331368, 2813720, 2914210, 3138380, 4079894, 5828420, 6276760, 8159788, 10199735, 11656840, 16319576, 20399470, 40798940, 81597880]

約数ペア:

[(1, 81597880), (2, 40798940), (4, 20399470), (5, 16319576), (7, 11656840), (8, 10199735), (10, 8159788), (13, 6276760), (14, 5828420), (20, 4079894), (26, 3138380), (28, 2914210), (29, 2813720), (35, 2331368), (40, 2039947), (52, 1569190), (56, 1457105), (58, 1406860), (65, 1255352), (70, 1165684), (91, 896680), (104, 784595), (116, 703430), (130, 627676), (140, 582842), (145, 562744), (182, 448340), (203, 401960), (232, 351715), (260, 313838), (280, 291421), (290, 281372), (364, 224170), (377, 216440), (406, 200980), (455, 179336), (520, 156919), (580, 140686), (728, 112085), (754, 108220), (773, 105560), (812, 100490), (910, 89668), (1015, 80392), (1160, 70343), (1508, 54110), (1546, 52780), (1624, 50245), (1820, 44834), (1885, 43288), (2030, 40196), (2639, 30920), (3016, 27055), (3092, 26390), (3640, 22417), (3770, 21644), (3865, 21112), (4060, 20098), (5278, 15460), (5411, 15080), (6184, 13195), (7540, 10822), (7730, 10556), (8120, 10049)]