81302890

素因数分解:

$2^1\times 5^1\times {\mathrm{2711}}^1\times {\mathrm{2999}}^1$

素因数の和:5717

約数の個数: 16

約数和(自身を含む): 146448000

約数和(自身を除く): 65145110

約数列:

[1, 2, 5, 10, 2711, 2999, 5422, 5998, 13555, 14995, 27110, 29990, 8130289, 16260578, 40651445, 81302890]

約数ペア:

[(1, 81302890), (2, 40651445), (5, 16260578), (10, 8130289), (2711, 29990), (2999, 27110), (5422, 14995), (5998, 13555)]