64307620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{247337}}^1$

素因数の和:247359

約数の個数: 24

約数和(自身を含む): 145434744

約数和(自身を除く): 81127124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 247337, 494674, 989348, 1236685, 2473370, 3215381, 4946740, 6430762, 12861524, 16076905, 32153810, 64307620]

約数ペア:

[(1, 64307620), (2, 32153810), (4, 16076905), (5, 12861524), (10, 6430762), (13, 4946740), (20, 3215381), (26, 2473370), (52, 1236685), (65, 989348), (130, 494674), (260, 247337)]