81661010

素因数分解:

$2^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{24671}}^1$

素因数の和:25009

約数の個数: 16

約数和(自身を含む): 147439872

約数和(自身を除く): 65778862

約数列:

[1, 2, 5, 10, 331, 662, 1655, 3310, 24671, 49342, 123355, 246710, 8166101, 16332202, 40830505, 81661010]

約数ペア:

[(1, 81661010), (2, 40830505), (5, 16332202), (10, 8166101), (331, 246710), (662, 123355), (1655, 49342), (3310, 24671)]