20154444

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 48639360

約数和(自身を除く): 28484916

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 139, 172, 258, 278, 281, 417, 516, 556, 562, 834, 843, 1124, 1668, 1686, 3372, 5977, 11954, 12083, 17931, 23908, 24166, 35862, 36249, 39059, 48332, 71724, 72498, 78118, 117177, 144996, 156236, 234354, 468708, 1679537, 3359074, 5038611, 6718148, 10077222, 20154444]

約数ペア:

[(1, 20154444), (2, 10077222), (3, 6718148), (4, 5038611), (6, 3359074), (12, 1679537), (43, 468708), (86, 234354), (129, 156236), (139, 144996), (172, 117177), (258, 78118), (278, 72498), (281, 71724), (417, 48332), (516, 39059), (556, 36249), (562, 35862), (834, 24166), (843, 23908), (1124, 17931), (1668, 12083), (1686, 11954), (3372, 5977)]