87417640

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{4451}}^1$

素因数の和:4953

約数の個数: 32

約数和(自身を含む): 197134560

約数和(自身を除く): 109716920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4451, 4910, 8902, 9820, 17804, 19640, 22255, 35608, 44510, 89020, 178040, 2185441, 4370882, 8741764, 10927205, 17483528, 21854410, 43708820, 87417640]

約数ペア:

[(1, 87417640), (2, 43708820), (4, 21854410), (5, 17483528), (8, 10927205), (10, 8741764), (20, 4370882), (40, 2185441), (491, 178040), (982, 89020), (1964, 44510), (2455, 35608), (3928, 22255), (4451, 19640), (4910, 17804), (8902, 9820)]