1640200315

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{2647}}^1\times {\mathrm{9533}}^1$

素因数の和:12198

約数の個数: 16

約数和(自身を含む): 2120666688

約数和(自身を除く): 480466373

約数列:

[1, 5, 13, 65, 2647, 9533, 13235, 34411, 47665, 123929, 172055, 619645, 25233851, 126169255, 328040063, 1640200315]

約数ペア:

[(1, 1640200315), (5, 328040063), (13, 126169255), (65, 25233851), (2647, 619645), (9533, 172055), (13235, 123929), (34411, 47665)]