89109740

素因数分解:

$2^2\times 5^1\times {\mathrm{4455487}}^1$

素因数の和:4455496

約数の個数: 12

約数和(自身を含む): 187130496

約数和(自身を除く): 98020756

約数列:

[1, 2, 4, 5, 10, 20, 4455487, 8910974, 17821948, 22277435, 44554870, 89109740]

約数ペア:

[(1, 89109740), (2, 44554870), (4, 22277435), (5, 17821948), (10, 8910974), (20, 4455487)]