25557020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41221}}^1$

素因数の和:41261

約数の個数: 24

約数和(自身を含む): 55402368

約数和(自身を除く): 29845348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 41221, 82442, 164884, 206105, 412210, 824420, 1277851, 2555702, 5111404, 6389255, 12778510, 25557020]

約数ペア:

[(1, 25557020), (2, 12778510), (4, 6389255), (5, 5111404), (10, 2555702), (20, 1277851), (31, 824420), (62, 412210), (124, 206105), (155, 164884), (310, 82442), (620, 41221)]