20064860

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2383}}^1$

素因数の和:2813

約数の個数: 24

約数和(自身を含む): 42254016

約数和(自身を除く): 22189156

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 2383, 4210, 4766, 8420, 9532, 11915, 23830, 47660, 1003243, 2006486, 4012972, 5016215, 10032430, 20064860]

約数ペア:

[(1, 20064860), (2, 10032430), (4, 5016215), (5, 4012972), (10, 2006486), (20, 1003243), (421, 47660), (842, 23830), (1684, 11915), (2105, 9532), (2383, 8420), (4210, 4766)]