68897660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{264991}}^1$

素因数の和:265013

約数の個数: 24

約数和(自身を含む): 155815296

約数和(自身を除く): 86917636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 264991, 529982, 1059964, 1324955, 2649910, 3444883, 5299820, 6889766, 13779532, 17224415, 34448830, 68897660]

約数ペア:

[(1, 68897660), (2, 34448830), (4, 17224415), (5, 13779532), (10, 6889766), (13, 5299820), (20, 3444883), (26, 2649910), (52, 1324955), (65, 1059964), (130, 529982), (260, 264991)]