90404840

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{5693}}^1$

素因数の和:6101

約数の個数: 32

約数和(自身を含む): 203959080

約数和(自身を除く): 113554240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 5693, 7940, 11386, 15880, 22772, 28465, 45544, 56930, 113860, 227720, 2260121, 4520242, 9040484, 11300605, 18080968, 22601210, 45202420, 90404840]

約数ペア:

[(1, 90404840), (2, 45202420), (4, 22601210), (5, 18080968), (8, 11300605), (10, 9040484), (20, 4520242), (40, 2260121), (397, 227720), (794, 113860), (1588, 56930), (1985, 45544), (3176, 28465), (3970, 22772), (5693, 15880), (7940, 11386)]