19391650

素因数分解:

$2^1\times 5^2\times {\mathrm{389}}^1\times {\mathrm{997}}^1$

素因数の和:1398

約数の個数: 24

約数和(自身を含む): 36197460

約数和(自身を除く): 16805810

約数列:

[1, 2, 5, 10, 25, 50, 389, 778, 997, 1945, 1994, 3890, 4985, 9725, 9970, 19450, 24925, 49850, 387833, 775666, 1939165, 3878330, 9695825, 19391650]

約数ペア:

[(1, 19391650), (2, 9695825), (5, 3878330), (10, 1939165), (25, 775666), (50, 387833), (389, 49850), (778, 24925), (997, 19450), (1945, 9970), (1994, 9725), (3890, 4985)]