123909980

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{24107}}^1$

素因数の和:24373

約数の個数: 24

約数和(自身を含む): 261234288

約数和(自身を除く): 137324308

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 24107, 48214, 96428, 120535, 241070, 482140, 6195499, 12390998, 24781996, 30977495, 61954990, 123909980]

約数ペア:

[(1, 123909980), (2, 61954990), (4, 30977495), (5, 24781996), (10, 12390998), (20, 6195499), (257, 482140), (514, 241070), (1028, 120535), (1285, 96428), (2570, 48214), (5140, 24107)]