20015425

素因数分解:

$5^2\times {\mathrm{43}}^2\times {\mathrm{433}}^1$

素因数の和:529

約数の個数: 18

約数和(自身を含む): 25468422

約数和(自身を除く): 5452997

約数列:

[1, 5, 25, 43, 215, 433, 1075, 1849, 2165, 9245, 10825, 18619, 46225, 93095, 465475, 800617, 4003085, 20015425]

約数ペア:

[(1, 20015425), (5, 4003085), (25, 800617), (43, 465475), (215, 93095), (433, 46225), (1075, 18619), (1849, 10825), (2165, 9245)]