2018131760

素因数分解:

$2^4\times 5^1\times {\mathrm{25226647}}^1$

素因数の和:25226660

約数の個数: 20

約数和(自身を含む): 4692156528

約数和(自身を除く): 2674024768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25226647, 50453294, 100906588, 126133235, 201813176, 252266470, 403626352, 504532940, 1009065880, 2018131760]

約数ペア:

[(1, 2018131760), (2, 1009065880), (4, 504532940), (5, 403626352), (8, 252266470), (10, 201813176), (16, 126133235), (20, 100906588), (40, 50453294), (80, 25226647)]