77868640

素因数分解:

$2^5\times 5^1\times {\mathrm{486679}}^1$

素因数の和:486694

約数の個数: 24

約数和(自身を含む): 183965040

約数和(自身を除く): 106096400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 486679, 973358, 1946716, 2433395, 3893432, 4866790, 7786864, 9733580, 15573728, 19467160, 38934320, 77868640]

約数ペア:

[(1, 77868640), (2, 38934320), (4, 19467160), (5, 15573728), (8, 9733580), (10, 7786864), (16, 4866790), (20, 3893432), (32, 2433395), (40, 1946716), (80, 973358), (160, 486679)]