87237140

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{11213}}^1$

素因数の和:11611

約数の個数: 24

約数和(自身を含む): 183685320

約数和(自身を除く): 96448180

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 11213, 22426, 44852, 56065, 112130, 224260, 4361857, 8723714, 17447428, 21809285, 43618570, 87237140]

約数ペア:

[(1, 87237140), (2, 43618570), (4, 21809285), (5, 17447428), (10, 8723714), (20, 4361857), (389, 224260), (778, 112130), (1556, 56065), (1945, 44852), (3890, 22426), (7780, 11213)]