20288072

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 46707840

約数和(自身を除く): 26419768

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 101, 119, 136, 202, 211, 238, 404, 422, 476, 707, 808, 844, 952, 1414, 1477, 1688, 1717, 2828, 2954, 3434, 3587, 5656, 5908, 6868, 7174, 11816, 12019, 13736, 14348, 21311, 24038, 25109, 28696, 42622, 48076, 50218, 85244, 96152, 100436, 149177, 170488, 200872, 298354, 362287, 596708, 724574, 1193416, 1449148, 2536009, 2898296, 5072018, 10144036, 20288072]

約数ペア:

[(1, 20288072), (2, 10144036), (4, 5072018), (7, 2898296), (8, 2536009), (14, 1449148), (17, 1193416), (28, 724574), (34, 596708), (56, 362287), (68, 298354), (101, 200872), (119, 170488), (136, 149177), (202, 100436), (211, 96152), (238, 85244), (404, 50218), (422, 48076), (476, 42622), (707, 28696), (808, 25109), (844, 24038), (952, 21311), (1414, 14348), (1477, 13736), (1688, 12019), (1717, 11816), (2828, 7174), (2954, 6868), (3434, 5908), (3587, 5656)]