18640404

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 49212072

約数和(自身を除く): 30571668

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 73, 82, 123, 146, 164, 173, 219, 246, 292, 346, 369, 438, 492, 519, 657, 692, 738, 876, 1038, 1314, 1476, 1557, 2076, 2628, 2993, 3114, 5986, 6228, 7093, 8979, 11972, 12629, 14186, 17958, 21279, 25258, 26937, 28372, 35916, 37887, 42558, 50516, 53874, 63837, 75774, 85116, 107748, 113661, 127674, 151548, 227322, 255348, 454644, 517789, 1035578, 1553367, 2071156, 3106734, 4660101, 6213468, 9320202, 18640404]

約数ペア:

[(1, 18640404), (2, 9320202), (3, 6213468), (4, 4660101), (6, 3106734), (9, 2071156), (12, 1553367), (18, 1035578), (36, 517789), (41, 454644), (73, 255348), (82, 227322), (123, 151548), (146, 127674), (164, 113661), (173, 107748), (219, 85116), (246, 75774), (292, 63837), (346, 53874), (369, 50516), (438, 42558), (492, 37887), (519, 35916), (657, 28372), (692, 26937), (738, 25258), (876, 21279), (1038, 17958), (1314, 14186), (1476, 12629), (1557, 11972), (2076, 8979), (2628, 7093), (2993, 6228), (3114, 5986)]