1998130180

素因数分解:

$2^2\times 5^1\times {\mathrm{99906509}}^1$

素因数の和:99906518

約数の個数: 12

約数和(自身を含む): 4196073420

約数和(自身を除く): 2197943240

約数列:

[1, 2, 4, 5, 10, 20, 99906509, 199813018, 399626036, 499532545, 999065090, 1998130180]

約数ペア:

[(1, 1998130180), (2, 999065090), (4, 499532545), (5, 399626036), (10, 199813018), (20, 99906509)]