86720660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{25657}}^1$

素因数の和:25692

約数の個数: 36

約数和(自身を含む): 197207388

約数和(自身を除く): 110486728

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 25657, 51314, 102628, 128285, 256570, 333541, 513140, 667082, 1334164, 1667705, 3335410, 4336033, 6670820, 8672066, 17344132, 21680165, 43360330, 86720660]

約数ペア:

[(1, 86720660), (2, 43360330), (4, 21680165), (5, 17344132), (10, 8672066), (13, 6670820), (20, 4336033), (26, 3335410), (52, 1667705), (65, 1334164), (130, 667082), (169, 513140), (260, 333541), (338, 256570), (676, 128285), (845, 102628), (1690, 51314), (3380, 25657)]