664663804

素因数分解:

$2^2\times 7^1\times {\mathrm{1163}}^1\times {\mathrm{20411}}^1$

素因数の和:21585

約数の個数: 24

約数和(自身を含む): 1330535808

約数和(自身を除く): 665872004

約数列:

[1, 2, 4, 7, 14, 28, 1163, 2326, 4652, 8141, 16282, 20411, 32564, 40822, 81644, 142877, 285754, 571508, 23737993, 47475986, 94951972, 166165951, 332331902, 664663804]

約数ペア:

[(1, 664663804), (2, 332331902), (4, 166165951), (7, 94951972), (14, 47475986), (28, 23737993), (1163, 571508), (2326, 285754), (4652, 142877), (8141, 81644), (16282, 40822), (20411, 32564)]