81496920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{739}}^1\times {\mathrm{919}}^1$

素因数の和:1672

約数の個数: 64

約数和(自身を含む): 245088000

約数和(自身を除く): 163591080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 739, 919, 1478, 1838, 2217, 2757, 2956, 3676, 3695, 4434, 4595, 5514, 5912, 7352, 7390, 8868, 9190, 11028, 11085, 13785, 14780, 17736, 18380, 22056, 22170, 27570, 29560, 36760, 44340, 55140, 88680, 110280, 679141, 1358282, 2037423, 2716564, 3395705, 4074846, 5433128, 6791410, 8149692, 10187115, 13582820, 16299384, 20374230, 27165640, 40748460, 81496920]

約数ペア:

[(1, 81496920), (2, 40748460), (3, 27165640), (4, 20374230), (5, 16299384), (6, 13582820), (8, 10187115), (10, 8149692), (12, 6791410), (15, 5433128), (20, 4074846), (24, 3395705), (30, 2716564), (40, 2037423), (60, 1358282), (120, 679141), (739, 110280), (919, 88680), (1478, 55140), (1838, 44340), (2217, 36760), (2757, 29560), (2956, 27570), (3676, 22170), (3695, 22056), (4434, 18380), (4595, 17736), (5514, 14780), (5912, 13785), (7352, 11085), (7390, 11028), (8868, 9190)]