20311812

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 53333280

約数和(自身を除く): 33021468

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 73, 118, 131, 146, 177, 219, 236, 262, 292, 354, 393, 438, 524, 531, 657, 708, 786, 876, 1062, 1179, 1314, 1572, 2124, 2358, 2628, 4307, 4716, 7729, 8614, 9563, 12921, 15458, 17228, 19126, 23187, 25842, 28689, 30916, 38252, 38763, 46374, 51684, 57378, 69561, 77526, 86067, 92748, 114756, 139122, 155052, 172134, 278244, 344268, 564217, 1128434, 1692651, 2256868, 3385302, 5077953, 6770604, 10155906, 20311812]

約数ペア:

[(1, 20311812), (2, 10155906), (3, 6770604), (4, 5077953), (6, 3385302), (9, 2256868), (12, 1692651), (18, 1128434), (36, 564217), (59, 344268), (73, 278244), (118, 172134), (131, 155052), (146, 139122), (177, 114756), (219, 92748), (236, 86067), (262, 77526), (292, 69561), (354, 57378), (393, 51684), (438, 46374), (524, 38763), (531, 38252), (657, 30916), (708, 28689), (786, 25842), (876, 23187), (1062, 19126), (1179, 17228), (1314, 15458), (1572, 12921), (2124, 9563), (2358, 8614), (2628, 7729), (4307, 4716)]