15997400

素因数分解:

$2^3\times 5^2\times {\mathrm{79987}}^1$

素因数の和:80003

約数の個数: 24

約数和(自身を含む): 37194420

約数和(自身を除く): 21197020

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 79987, 159974, 319948, 399935, 639896, 799870, 1599740, 1999675, 3199480, 3999350, 7998700, 15997400]

約数ペア:

[(1, 15997400), (2, 7998700), (4, 3999350), (5, 3199480), (8, 1999675), (10, 1599740), (20, 799870), (25, 639896), (40, 399935), (50, 319948), (100, 159974), (200, 79987)]