20850800

素因数分解:

$2^4\times 5^2\times {\mathrm{52127}}^1$

素因数の和:52145

約数の個数: 30

約数和(自身を含む): 50095008

約数和(自身を除く): 29244208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52127, 104254, 208508, 260635, 417016, 521270, 834032, 1042540, 1303175, 2085080, 2606350, 4170160, 5212700, 10425400, 20850800]

約数ペア:

[(1, 20850800), (2, 10425400), (4, 5212700), (5, 4170160), (8, 2606350), (10, 2085080), (16, 1303175), (20, 1042540), (25, 834032), (40, 521270), (50, 417016), (80, 260635), (100, 208508), (200, 104254), (400, 52127)]