401349440

素因数分解:

$2^6\times 5^1\times {\mathrm{1254217}}^1$

素因数の和:1254234

約数の個数: 28

約数和(自身を含む): 955714116

約数和(自身を除く): 554364676

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1254217, 2508434, 5016868, 6271085, 10033736, 12542170, 20067472, 25084340, 40134944, 50168680, 80269888, 100337360, 200674720, 401349440]

約数ペア:

[(1, 401349440), (2, 200674720), (4, 100337360), (5, 80269888), (8, 50168680), (10, 40134944), (16, 25084340), (20, 20067472), (32, 12542170), (40, 10033736), (64, 6271085), (80, 5016868), (160, 2508434), (320, 1254217)]