8123960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{919}}^1$

素因数の和:960

約数の個数: 64

約数和(自身を含む): 20865600

約数和(自身を除く): 12741640

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 919, 1105, 1768, 1838, 2210, 3676, 4420, 4595, 7352, 8840, 9190, 11947, 15623, 18380, 23894, 31246, 36760, 47788, 59735, 62492, 78115, 95576, 119470, 124984, 156230, 203099, 238940, 312460, 406198, 477880, 624920, 812396, 1015495, 1624792, 2030990, 4061980, 8123960]

約数ペア:

[(1, 8123960), (2, 4061980), (4, 2030990), (5, 1624792), (8, 1015495), (10, 812396), (13, 624920), (17, 477880), (20, 406198), (26, 312460), (34, 238940), (40, 203099), (52, 156230), (65, 124984), (68, 119470), (85, 95576), (104, 78115), (130, 62492), (136, 59735), (170, 47788), (221, 36760), (260, 31246), (340, 23894), (442, 18380), (520, 15623), (680, 11947), (884, 9190), (919, 8840), (1105, 7352), (1768, 4595), (1838, 4420), (2210, 3676)]