90545240

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{21977}}^1$

素因数の和:22091

約数の個数: 32

約数和(自身を含む): 205714080

約数和(自身を除く): 115168840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 21977, 43954, 87908, 109885, 175816, 219770, 439540, 879080, 2263631, 4527262, 9054524, 11318155, 18109048, 22636310, 45272620, 90545240]

約数ペア:

[(1, 90545240), (2, 45272620), (4, 22636310), (5, 18109048), (8, 11318155), (10, 9054524), (20, 4527262), (40, 2263631), (103, 879080), (206, 439540), (412, 219770), (515, 175816), (824, 109885), (1030, 87908), (2060, 43954), (4120, 21977)]