90231080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{72767}}^1$

素因数の和:72809

約数の個数: 32

約数和(自身を含む): 209571840

約数和(自身を除く): 119340760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 72767, 145534, 291068, 363835, 582136, 727670, 1455340, 2255777, 2910680, 4511554, 9023108, 11278885, 18046216, 22557770, 45115540, 90231080]

約数ペア:

[(1, 90231080), (2, 45115540), (4, 22557770), (5, 18046216), (8, 11278885), (10, 9023108), (20, 4511554), (31, 2910680), (40, 2255777), (62, 1455340), (124, 727670), (155, 582136), (248, 363835), (310, 291068), (620, 145534), (1240, 72767)]