99393680

素因数分解:

$2^4\times 5^1\times {\mathrm{1242421}}^1$

素因数の和:1242434

約数の個数: 20

約数和(自身を含む): 231090492

約数和(自身を除く): 131696812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1242421, 2484842, 4969684, 6212105, 9939368, 12424210, 19878736, 24848420, 49696840, 99393680]

約数ペア:

[(1, 99393680), (2, 49696840), (4, 24848420), (5, 19878736), (8, 12424210), (10, 9939368), (16, 6212105), (20, 4969684), (40, 2484842), (80, 1242421)]