15490940

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1951}}^1$

素因数の和:2357

約数の個数: 24

約数和(自身を含む): 32629632

約数和(自身を除く): 17138692

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1951, 1985, 3902, 3970, 7804, 7940, 9755, 19510, 39020, 774547, 1549094, 3098188, 3872735, 7745470, 15490940]

約数ペア:

[(1, 15490940), (2, 7745470), (4, 3872735), (5, 3098188), (10, 1549094), (20, 774547), (397, 39020), (794, 19510), (1588, 9755), (1951, 7940), (1985, 7804), (3902, 3970)]