20926540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14737}}^1$

素因数の和:14817

約数の個数: 24

約数和(自身を含む): 44567712

約数和(自身を除く): 23641172

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14737, 29474, 58948, 73685, 147370, 294740, 1046327, 2092654, 4185308, 5231635, 10463270, 20926540]

約数ペア:

[(1, 20926540), (2, 10463270), (4, 5231635), (5, 4185308), (10, 2092654), (20, 1046327), (71, 294740), (142, 147370), (284, 73685), (355, 58948), (710, 29474), (1420, 14737)]