38191640

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6869}}^1$

素因数の和:7019

約数の個数: 32

約数和(自身を含む): 86562000

約数和(自身を除く): 48370360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 6869, 13738, 27476, 34345, 54952, 68690, 137380, 274760, 954791, 1909582, 3819164, 4773955, 7638328, 9547910, 19095820, 38191640]

約数ペア:

[(1, 38191640), (2, 19095820), (4, 9547910), (5, 7638328), (8, 4773955), (10, 3819164), (20, 1909582), (40, 954791), (139, 274760), (278, 137380), (556, 68690), (695, 54952), (1112, 34345), (1390, 27476), (2780, 13738), (5560, 6869)]