208730260

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{40609}}^1$

素因数の和:40875

約数の個数: 24

約数和(自身を含む): 440049960

約数和(自身を除く): 231319700

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 40609, 81218, 162436, 203045, 406090, 812180, 10436513, 20873026, 41746052, 52182565, 104365130, 208730260]

約数ペア:

[(1, 208730260), (2, 104365130), (4, 52182565), (5, 41746052), (10, 20873026), (20, 10436513), (257, 812180), (514, 406090), (1028, 203045), (1285, 162436), (2570, 81218), (5140, 40609)]