31233880

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{2969}}^1$

素因数の和:3243

約数の個数: 32

約数和(自身を含む): 70567200

約数和(自身を除く): 39333320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 2969, 5260, 5938, 10520, 11876, 14845, 23752, 29690, 59380, 118760, 780847, 1561694, 3123388, 3904235, 6246776, 7808470, 15616940, 31233880]

約数ペア:

[(1, 31233880), (2, 15616940), (4, 7808470), (5, 6246776), (8, 3904235), (10, 3123388), (20, 1561694), (40, 780847), (263, 118760), (526, 59380), (1052, 29690), (1315, 23752), (2104, 14845), (2630, 11876), (2969, 10520), (5260, 5938)]