20312824

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1123}}^1$

素因数の和:1172

約数の個数: 64

約数和(自身を含む): 48556800

約数和(自身を除く): 28243976

約数列:

[1, 2, 4, 7, 8, 14, 17, 19, 28, 34, 38, 56, 68, 76, 119, 133, 136, 152, 238, 266, 323, 476, 532, 646, 952, 1064, 1123, 1292, 2246, 2261, 2584, 4492, 4522, 7861, 8984, 9044, 15722, 18088, 19091, 21337, 31444, 38182, 42674, 62888, 76364, 85348, 133637, 149359, 152728, 170696, 267274, 298718, 362729, 534548, 597436, 725458, 1069096, 1194872, 1450916, 2539103, 2901832, 5078206, 10156412, 20312824]

約数ペア:

[(1, 20312824), (2, 10156412), (4, 5078206), (7, 2901832), (8, 2539103), (14, 1450916), (17, 1194872), (19, 1069096), (28, 725458), (34, 597436), (38, 534548), (56, 362729), (68, 298718), (76, 267274), (119, 170696), (133, 152728), (136, 149359), (152, 133637), (238, 85348), (266, 76364), (323, 62888), (476, 42674), (532, 38182), (646, 31444), (952, 21337), (1064, 19091), (1123, 18088), (1292, 15722), (2246, 9044), (2261, 8984), (2584, 7861), (4492, 4522)]