19905184

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{811}}^1$

素因数の和:893

約数の個数: 48

約数和(自身を含む): 42971040

約数和(自身を除く): 23065856

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 59, 104, 118, 208, 236, 416, 472, 767, 811, 944, 1534, 1622, 1888, 3068, 3244, 6136, 6488, 10543, 12272, 12976, 21086, 24544, 25952, 42172, 47849, 84344, 95698, 168688, 191396, 337376, 382792, 622037, 765584, 1244074, 1531168, 2488148, 4976296, 9952592, 19905184]

約数ペア:

[(1, 19905184), (2, 9952592), (4, 4976296), (8, 2488148), (13, 1531168), (16, 1244074), (26, 765584), (32, 622037), (52, 382792), (59, 337376), (104, 191396), (118, 168688), (208, 95698), (236, 84344), (416, 47849), (472, 42172), (767, 25952), (811, 24544), (944, 21086), (1534, 12976), (1622, 12272), (1888, 10543), (3068, 6488), (3244, 6136)]