248796080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7717}}^1$

素因数の和:7774

約数の個数: 80

約数和(自身を含む): 643125504

約数和(自身を除く): 394329424

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 7717, 8060, 15434, 16120, 30868, 32240, 38585, 61736, 77170, 100321, 123472, 154340, 200642, 239227, 308680, 401284, 478454, 501605, 617360, 802568, 956908, 1003210, 1196135, 1605136, 1913816, 2006420, 2392270, 3109951, 3827632, 4012840, 4784540, 6219902, 8025680, 9569080, 12439804, 15549755, 19138160, 24879608, 31099510, 49759216, 62199020, 124398040, 248796080]

約数ペア:

[(1, 248796080), (2, 124398040), (4, 62199020), (5, 49759216), (8, 31099510), (10, 24879608), (13, 19138160), (16, 15549755), (20, 12439804), (26, 9569080), (31, 8025680), (40, 6219902), (52, 4784540), (62, 4012840), (65, 3827632), (80, 3109951), (104, 2392270), (124, 2006420), (130, 1913816), (155, 1605136), (208, 1196135), (248, 1003210), (260, 956908), (310, 802568), (403, 617360), (496, 501605), (520, 478454), (620, 401284), (806, 308680), (1040, 239227), (1240, 200642), (1612, 154340), (2015, 123472), (2480, 100321), (3224, 77170), (4030, 61736), (6448, 38585), (7717, 32240), (8060, 30868), (15434, 16120)]