79398020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{305377}}^1$

素因数の和:305399

約数の個数: 24

約数和(自身を含む): 179562264

約数和(自身を除く): 100164244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 305377, 610754, 1221508, 1526885, 3053770, 3969901, 6107540, 7939802, 15879604, 19849505, 39699010, 79398020]

約数ペア:

[(1, 79398020), (2, 39699010), (4, 19849505), (5, 15879604), (10, 7939802), (13, 6107540), (20, 3969901), (26, 3053770), (52, 1526885), (65, 1221508), (130, 610754), (260, 305377)]