199028540

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{71593}}^1$

素因数の和:71741

約数の個数: 24

約数和(自身を含む): 420972720

約数和(自身を除く): 221944180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 71593, 143186, 286372, 357965, 715930, 1431860, 9951427, 19902854, 39805708, 49757135, 99514270, 199028540]

約数ペア:

[(1, 199028540), (2, 99514270), (4, 49757135), (5, 39805708), (10, 19902854), (20, 9951427), (139, 1431860), (278, 715930), (556, 357965), (695, 286372), (1390, 143186), (2780, 71593)]