20977160

素因数分解:

$2^3\times 5^1\times {\mathrm{524429}}^1$

素因数の和:524440

約数の個数: 16

約数和(自身を含む): 47198700

約数和(自身を除く): 26221540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 524429, 1048858, 2097716, 2622145, 4195432, 5244290, 10488580, 20977160]

約数ペア:

[(1, 20977160), (2, 10488580), (4, 5244290), (5, 4195432), (8, 2622145), (10, 2097716), (20, 1048858), (40, 524429)]