20275565

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:329

約数の個数: 24

約数和(自身を含む): 26334720

約数和(自身を除く): 6059155

約数列:

[1, 5, 19, 47, 95, 235, 239, 361, 893, 1195, 1805, 4465, 4541, 11233, 16967, 22705, 56165, 84835, 86279, 213427, 431395, 1067135, 4055113, 20275565]

約数ペア:

[(1, 20275565), (5, 4055113), (19, 1067135), (47, 431395), (95, 213427), (235, 86279), (239, 84835), (361, 56165), (893, 22705), (1195, 16967), (1805, 11233), (4465, 4541)]