15678820

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{2473}}^1$

素因数の和:2799

約数の個数: 24

約数和(自身を含む): 33042744

約数和(自身を除く): 17363924

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 2473, 3170, 4946, 6340, 9892, 12365, 24730, 49460, 783941, 1567882, 3135764, 3919705, 7839410, 15678820]

約数ペア:

[(1, 15678820), (2, 7839410), (4, 3919705), (5, 3135764), (10, 1567882), (20, 783941), (317, 49460), (634, 24730), (1268, 12365), (1585, 9892), (2473, 6340), (3170, 4946)]