81040010

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{18049}}^1$

素因数の和:18505

約数の個数: 16

約数和(自身を含む): 146205000

約数和(自身を除く): 65164990

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4490, 18049, 36098, 90245, 180490, 8104001, 16208002, 40520005, 81040010]

約数ペア:

[(1, 81040010), (2, 40520005), (5, 16208002), (10, 8104001), (449, 180490), (898, 90245), (2245, 36098), (4490, 18049)]