85881640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{521}}^1$

素因数の和:862

約数の個数: 64

約数和(自身を含む): 209154960

約数和(自身を除く): 123273320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 317, 520, 521, 634, 1042, 1268, 1585, 2084, 2536, 2605, 3170, 4121, 4168, 5210, 6340, 6773, 8242, 10420, 12680, 13546, 16484, 20605, 20840, 27092, 32968, 33865, 41210, 54184, 67730, 82420, 135460, 164840, 165157, 270920, 330314, 660628, 825785, 1321256, 1651570, 2147041, 3303140, 4294082, 6606280, 8588164, 10735205, 17176328, 21470410, 42940820, 85881640]

約数ペア:

[(1, 85881640), (2, 42940820), (4, 21470410), (5, 17176328), (8, 10735205), (10, 8588164), (13, 6606280), (20, 4294082), (26, 3303140), (40, 2147041), (52, 1651570), (65, 1321256), (104, 825785), (130, 660628), (260, 330314), (317, 270920), (520, 165157), (521, 164840), (634, 135460), (1042, 82420), (1268, 67730), (1585, 54184), (2084, 41210), (2536, 33865), (2605, 32968), (3170, 27092), (4121, 20840), (4168, 20605), (5210, 16484), (6340, 13546), (6773, 12680), (8242, 10420)]