20393824

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:284

約数の個数: 72

約数和(自身を含む): 46252080

約数和(自身を除く): 25858256

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 88, 92, 121, 176, 184, 229, 242, 253, 352, 368, 458, 484, 506, 736, 916, 968, 1012, 1832, 1936, 2024, 2519, 2783, 3664, 3872, 4048, 5038, 5267, 5566, 7328, 8096, 10076, 10534, 11132, 20152, 21068, 22264, 27709, 40304, 42136, 44528, 55418, 57937, 80608, 84272, 89056, 110836, 115874, 168544, 221672, 231748, 443344, 463496, 637307, 886688, 926992, 1274614, 1853984, 2549228, 5098456, 10196912, 20393824]

約数ペア:

[(1, 20393824), (2, 10196912), (4, 5098456), (8, 2549228), (11, 1853984), (16, 1274614), (22, 926992), (23, 886688), (32, 637307), (44, 463496), (46, 443344), (88, 231748), (92, 221672), (121, 168544), (176, 115874), (184, 110836), (229, 89056), (242, 84272), (253, 80608), (352, 57937), (368, 55418), (458, 44528), (484, 42136), (506, 40304), (736, 27709), (916, 22264), (968, 21068), (1012, 20152), (1832, 11132), (1936, 10534), (2024, 10076), (2519, 8096), (2783, 7328), (3664, 5566), (3872, 5267), (4048, 5038)]