19381580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13649}}^1$

素因数の和:13729

約数の個数: 24

約数和(自身を含む): 41277600

約数和(自身を除く): 21896020

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 13649, 27298, 54596, 68245, 136490, 272980, 969079, 1938158, 3876316, 4845395, 9690790, 19381580]

約数ペア:

[(1, 19381580), (2, 9690790), (4, 4845395), (5, 3876316), (10, 1938158), (20, 969079), (71, 272980), (142, 136490), (284, 68245), (355, 54596), (710, 27298), (1420, 13649)]