205005123

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 316476160

約数和(自身を除く): 111471037

約数列:

[1, 3, 9, 37, 43, 103, 111, 129, 139, 309, 333, 387, 417, 927, 1251, 1591, 3811, 4429, 4773, 5143, 5977, 11433, 13287, 14317, 14319, 15429, 17931, 34299, 39861, 42951, 46287, 53793, 128853, 163873, 221149, 491619, 529729, 615631, 663447, 1474857, 1589187, 1846893, 1990341, 4767561, 5540679, 22778347, 68335041, 205005123]

約数ペア:

[(1, 205005123), (3, 68335041), (9, 22778347), (37, 5540679), (43, 4767561), (103, 1990341), (111, 1846893), (129, 1589187), (139, 1474857), (309, 663447), (333, 615631), (387, 529729), (417, 491619), (927, 221149), (1251, 163873), (1591, 128853), (3811, 53793), (4429, 46287), (4773, 42951), (5143, 39861), (5977, 34299), (11433, 17931), (13287, 15429), (14317, 14319)]