99640360

素因数分解:

$2^3\times 5^1\times {\mathrm{2491009}}^1$

素因数の和:2491020

約数の個数: 16

約数和(自身を含む): 224190900

約数和(自身を除く): 124550540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2491009, 4982018, 9964036, 12455045, 19928072, 24910090, 49820180, 99640360]

約数ペア:

[(1, 99640360), (2, 49820180), (4, 24910090), (5, 19928072), (8, 12455045), (10, 9964036), (20, 4982018), (40, 2491009)]