40980020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89087}}^1$

素因数の和:89119

約数の個数: 24

約数和(自身を含む): 89800704

約数和(自身を除く): 48820684

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 89087, 178174, 356348, 445435, 890870, 1781740, 2049001, 4098002, 8196004, 10245005, 20490010, 40980020]

約数ペア:

[(1, 40980020), (2, 20490010), (4, 10245005), (5, 8196004), (10, 4098002), (20, 2049001), (23, 1781740), (46, 890870), (92, 445435), (115, 356348), (230, 178174), (460, 89087)]