40728620

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{11251}}^1$

素因数の和:11441

約数の個数: 24

約数和(自身を含む): 86010288

約数和(自身を除く): 45281668

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 11251, 22502, 45004, 56255, 112510, 225020, 2036431, 4072862, 8145724, 10182155, 20364310, 40728620]

約数ペア:

[(1, 40728620), (2, 20364310), (4, 10182155), (5, 8145724), (10, 4072862), (20, 2036431), (181, 225020), (362, 112510), (724, 56255), (905, 45004), (1810, 22502), (3620, 11251)]