20976820

素因数分解:

$2^2\times 5^1\times {\mathrm{929}}^1\times {\mathrm{1129}}^1$

素因数の和:2067

約数の個数: 24

約数和(自身を含む): 44137800

約数和(自身を除く): 23160980

約数列:

[1, 2, 4, 5, 10, 20, 929, 1129, 1858, 2258, 3716, 4516, 4645, 5645, 9290, 11290, 18580, 22580, 1048841, 2097682, 4195364, 5244205, 10488410, 20976820]

約数ペア:

[(1, 20976820), (2, 10488410), (4, 5244205), (5, 4195364), (10, 2097682), (20, 1048841), (929, 22580), (1129, 18580), (1858, 11290), (2258, 9290), (3716, 5645), (4516, 4645)]