81964535

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1\times {\mathrm{821}}^1$

素因数の和:1354

約数の個数: 16

約数和(自身を含む): 101086272

約数和(自身を除く): 19121737

約数列:

[1, 5, 41, 205, 487, 821, 2435, 4105, 19967, 33661, 99835, 168305, 399827, 1999135, 16392907, 81964535]

約数ペア:

[(1, 81964535), (5, 16392907), (41, 1999135), (205, 399827), (487, 168305), (821, 99835), (2435, 33661), (4105, 19967)]