17965420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{643}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 41545728

約数和(自身を除く): 23580308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 127, 220, 254, 508, 635, 643, 1270, 1286, 1397, 2540, 2572, 2794, 3215, 5588, 6430, 6985, 7073, 12860, 13970, 14146, 27940, 28292, 35365, 70730, 81661, 141460, 163322, 326644, 408305, 816610, 898271, 1633220, 1796542, 3593084, 4491355, 8982710, 17965420]

約数ペア:

[(1, 17965420), (2, 8982710), (4, 4491355), (5, 3593084), (10, 1796542), (11, 1633220), (20, 898271), (22, 816610), (44, 408305), (55, 326644), (110, 163322), (127, 141460), (220, 81661), (254, 70730), (508, 35365), (635, 28292), (643, 27940), (1270, 14146), (1286, 13970), (1397, 12860), (2540, 7073), (2572, 6985), (2794, 6430), (3215, 5588)]