89408120

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{21701}}^1$

素因数の和:21815

約数の個数: 32

約数和(自身を含む): 203130720

約数和(自身を除く): 113722600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 21701, 43402, 86804, 108505, 173608, 217010, 434020, 868040, 2235203, 4470406, 8940812, 11176015, 17881624, 22352030, 44704060, 89408120]

約数ペア:

[(1, 89408120), (2, 44704060), (4, 22352030), (5, 17881624), (8, 11176015), (10, 8940812), (20, 4470406), (40, 2235203), (103, 868040), (206, 434020), (412, 217010), (515, 173608), (824, 108505), (1030, 86804), (2060, 43402), (4120, 21701)]