405144640

素因数分解:

$2^6\times 5^1\times {\mathrm{1266077}}^1$

素因数の和:1266094

約数の個数: 28

約数和(自身を含む): 964751436

約数和(自身を除く): 559606796

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1266077, 2532154, 5064308, 6330385, 10128616, 12660770, 20257232, 25321540, 40514464, 50643080, 81028928, 101286160, 202572320, 405144640]

約数ペア:

[(1, 405144640), (2, 202572320), (4, 101286160), (5, 81028928), (8, 50643080), (10, 40514464), (16, 25321540), (20, 20257232), (32, 12660770), (40, 10128616), (64, 6330385), (80, 5064308), (160, 2532154), (320, 1266077)]