64410020

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{31267}}^1$

素因数の和:31379

約数の個数: 24

約数和(自身を含む): 136578624

約数和(自身を除く): 72168604

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 31267, 62534, 125068, 156335, 312670, 625340, 3220501, 6441002, 12882004, 16102505, 32205010, 64410020]

約数ペア:

[(1, 64410020), (2, 32205010), (4, 16102505), (5, 12882004), (10, 6441002), (20, 3220501), (103, 625340), (206, 312670), (412, 156335), (515, 125068), (1030, 62534), (2060, 31267)]