12777820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^2$

素因数の和:502

約数の個数: 36

約数和(自身を含む): 29394792

約数和(自身を除く): 16616972

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 241, 482, 964, 1205, 2410, 2651, 4820, 5302, 10604, 13255, 26510, 53020, 58081, 116162, 232324, 290405, 580810, 638891, 1161620, 1277782, 2555564, 3194455, 6388910, 12777820]

約数ペア:

[(1, 12777820), (2, 6388910), (4, 3194455), (5, 2555564), (10, 1277782), (11, 1161620), (20, 638891), (22, 580810), (44, 290405), (55, 232324), (110, 116162), (220, 58081), (241, 53020), (482, 26510), (964, 13255), (1205, 10604), (2410, 5302), (2651, 4820)]