78867620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{303337}}^1$

素因数の和:303359

約数の個数: 24

約数和(自身を含む): 178362744

約数和(自身を除く): 99495124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 303337, 606674, 1213348, 1516685, 3033370, 3943381, 6066740, 7886762, 15773524, 19716905, 39433810, 78867620]

約数ペア:

[(1, 78867620), (2, 39433810), (4, 19716905), (5, 15773524), (10, 7886762), (13, 6066740), (20, 3943381), (26, 3033370), (52, 1516685), (65, 1213348), (130, 606674), (260, 303337)]