18228220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47969}}^1$

素因数の和:47997

約数の個数: 24

約数和(自身を含む): 40294800

約数和(自身を除く): 22066580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 47969, 95938, 191876, 239845, 479690, 911411, 959380, 1822822, 3645644, 4557055, 9114110, 18228220]

約数ペア:

[(1, 18228220), (2, 9114110), (4, 4557055), (5, 3645644), (10, 1822822), (19, 959380), (20, 911411), (38, 479690), (76, 239845), (95, 191876), (190, 95938), (380, 47969)]