64613980

素因数分解:

$2^2\times 5^1\times {\mathrm{859}}^1\times {\mathrm{3761}}^1$

素因数の和:4629

約数の個数: 24

約数和(自身を含む): 135883440

約数和(自身を除く): 71269460

約数列:

[1, 2, 4, 5, 10, 20, 859, 1718, 3436, 3761, 4295, 7522, 8590, 15044, 17180, 18805, 37610, 75220, 3230699, 6461398, 12922796, 16153495, 32306990, 64613980]

約数ペア:

[(1, 64613980), (2, 32306990), (4, 16153495), (5, 12922796), (10, 6461398), (20, 3230699), (859, 75220), (1718, 37610), (3436, 18805), (3761, 17180), (4295, 15044), (7522, 8590)]