199020140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{904637}}^1$

素因数の和:904657

約数の個数: 24

約数和(自身を含む): 455937552

約数和(自身を除く): 256917412

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 904637, 1809274, 3618548, 4523185, 9046370, 9951007, 18092740, 19902014, 39804028, 49755035, 99510070, 199020140]

約数ペア:

[(1, 199020140), (2, 99510070), (4, 49755035), (5, 39804028), (10, 19902014), (11, 18092740), (20, 9951007), (22, 9046370), (44, 4523185), (55, 3618548), (110, 1809274), (220, 904637)]