20385376

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1997}}^1$

素因数の和:2047

約数の個数: 48

約数和(自身を含む): 45314640

約数和(自身を除く): 24929264

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 32, 44, 58, 88, 116, 176, 232, 319, 352, 464, 638, 928, 1276, 1997, 2552, 3994, 5104, 7988, 10208, 15976, 21967, 31952, 43934, 57913, 63904, 87868, 115826, 175736, 231652, 351472, 463304, 637043, 702944, 926608, 1274086, 1853216, 2548172, 5096344, 10192688, 20385376]

約数ペア:

[(1, 20385376), (2, 10192688), (4, 5096344), (8, 2548172), (11, 1853216), (16, 1274086), (22, 926608), (29, 702944), (32, 637043), (44, 463304), (58, 351472), (88, 231652), (116, 175736), (176, 115826), (232, 87868), (319, 63904), (352, 57913), (464, 43934), (638, 31952), (928, 21967), (1276, 15976), (1997, 10208), (2552, 7988), (3994, 5104)]