90025640

素因数分解:

$2^3\times 5^1\times {\mathrm{2250641}}^1$

素因数の和:2250652

約数の個数: 16

約数和(自身を含む): 202557780

約数和(自身を除く): 112532140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2250641, 4501282, 9002564, 11253205, 18005128, 22506410, 45012820, 90025640]

約数ペア:

[(1, 90025640), (2, 45012820), (4, 22506410), (5, 18005128), (8, 11253205), (10, 9002564), (20, 4501282), (40, 2250641)]