74253640

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2887}}^1$

素因数の和:3541

約数の個数: 32

約数和(自身を含む): 167388480

約数和(自身を除く): 93134840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 2887, 3215, 5144, 5774, 6430, 11548, 12860, 14435, 23096, 25720, 28870, 57740, 115480, 1856341, 3712682, 7425364, 9281705, 14850728, 18563410, 37126820, 74253640]

約数ペア:

[(1, 74253640), (2, 37126820), (4, 18563410), (5, 14850728), (8, 9281705), (10, 7425364), (20, 3712682), (40, 1856341), (643, 115480), (1286, 57740), (2572, 28870), (2887, 25720), (3215, 23096), (5144, 14435), (5774, 12860), (6430, 11548)]