19379380

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6971}}^1$

素因数の和:7119

約数の個数: 24

約数和(自身を含む): 40995360

約数和(自身を除く): 21615980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 6971, 13942, 27884, 34855, 69710, 139420, 968969, 1937938, 3875876, 4844845, 9689690, 19379380]

約数ペア:

[(1, 19379380), (2, 9689690), (4, 4844845), (5, 3875876), (10, 1937938), (20, 968969), (139, 139420), (278, 69710), (556, 34855), (695, 27884), (1390, 13942), (2780, 6971)]