400225060

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{253307}}^1$

素因数の和:253395

約数の個数: 24

約数和(自身を含む): 851114880

約数和(自身を除く): 450889820

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 253307, 506614, 1013228, 1266535, 2533070, 5066140, 20011253, 40022506, 80045012, 100056265, 200112530, 400225060]

約数ペア:

[(1, 400225060), (2, 200112530), (4, 100056265), (5, 80045012), (10, 40022506), (20, 20011253), (79, 5066140), (158, 2533070), (316, 1266535), (395, 1013228), (790, 506614), (1580, 253307)]