9988528040

素因数分解:

$2^3\times 5^1\times {\mathrm{249713201}}^1$

素因数の和:249713212

約数の個数: 16

約数和(自身を含む): 22474188180

約数和(自身を除く): 12485660140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 249713201, 499426402, 998852804, 1248566005, 1997705608, 2497132010, 4994264020, 9988528040]

約数ペア:

[(1, 9988528040), (2, 4994264020), (4, 2497132010), (5, 1997705608), (8, 1248566005), (10, 998852804), (20, 499426402), (40, 249713201)]