20422180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32939}}^1$

素因数の和:32979

約数の個数: 24

約数和(自身を含む): 44271360

約数和(自身を除く): 23849180

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 32939, 65878, 131756, 164695, 329390, 658780, 1021109, 2042218, 4084436, 5105545, 10211090, 20422180]

約数ペア:

[(1, 20422180), (2, 10211090), (4, 5105545), (5, 4084436), (10, 2042218), (20, 1021109), (31, 658780), (62, 329390), (124, 164695), (155, 131756), (310, 65878), (620, 32939)]