89799880

素因数分解:

$2^3\times 5^1\times {\mathrm{887}}^1\times {\mathrm{2531}}^1$

素因数の和:3429

約数の個数: 32

約数和(自身を含む): 202357440

約数和(自身を除く): 112557560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 887, 1774, 2531, 3548, 4435, 5062, 7096, 8870, 10124, 12655, 17740, 20248, 25310, 35480, 50620, 101240, 2244997, 4489994, 8979988, 11224985, 17959976, 22449970, 44899940, 89799880]

約数ペア:

[(1, 89799880), (2, 44899940), (4, 22449970), (5, 17959976), (8, 11224985), (10, 8979988), (20, 4489994), (40, 2244997), (887, 101240), (1774, 50620), (2531, 35480), (3548, 25310), (4435, 20248), (5062, 17740), (7096, 12655), (8870, 10124)]