7475420

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2689}}^1$

素因数の和:2837

約数の個数: 24

約数和(自身を含む): 15817200

約数和(自身を除く): 8341780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2689, 2780, 5378, 10756, 13445, 26890, 53780, 373771, 747542, 1495084, 1868855, 3737710, 7475420]

約数ペア:

[(1, 7475420), (2, 3737710), (4, 1868855), (5, 1495084), (10, 747542), (20, 373771), (139, 53780), (278, 26890), (556, 13445), (695, 10756), (1390, 5378), (2689, 2780)]