20418100

素因数分解:

$2^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{2797}}^1$

素因数の和:2884

約数の個数: 36

約数和(自身を含む): 44930284

約数和(自身を除く): 24512184

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 73, 100, 146, 292, 365, 730, 1460, 1825, 2797, 3650, 5594, 7300, 11188, 13985, 27970, 55940, 69925, 139850, 204181, 279700, 408362, 816724, 1020905, 2041810, 4083620, 5104525, 10209050, 20418100]

約数ペア:

[(1, 20418100), (2, 10209050), (4, 5104525), (5, 4083620), (10, 2041810), (20, 1020905), (25, 816724), (50, 408362), (73, 279700), (100, 204181), (146, 139850), (292, 69925), (365, 55940), (730, 27970), (1460, 13985), (1825, 11188), (2797, 7300), (3650, 5594)]