64131521810

素因数分解:

$2^1\times 5^1\times {\mathrm{81281}}^1\times {\mathrm{78901}}^1$

素因数の和:160189

約数の個数: 16

約数和(自身を含む): 115439622552

約数和(自身を除く): 51308100742

約数列:

[1, 2, 5, 10, 78901, 81281, 157802, 162562, 394505, 406405, 789010, 812810, 6413152181, 12826304362, 32065760905, 64131521810]

約数ペア:

[(1, 64131521810), (2, 32065760905), (5, 12826304362), (10, 6413152181), (78901, 812810), (81281, 789010), (157802, 406405), (162562, 394505)]