86402780

素因数分解:

$2^2\times 5^1\times {\mathrm{1871}}^1\times {\mathrm{2309}}^1$

素因数の和:4189

約数の個数: 24

約数和(自身を含む): 181621440

約数和(自身を除く): 95218660

約数列:

[1, 2, 4, 5, 10, 20, 1871, 2309, 3742, 4618, 7484, 9236, 9355, 11545, 18710, 23090, 37420, 46180, 4320139, 8640278, 17280556, 21600695, 43201390, 86402780]

約数ペア:

[(1, 86402780), (2, 43201390), (4, 21600695), (5, 17280556), (10, 8640278), (20, 4320139), (1871, 46180), (2309, 37420), (3742, 23090), (4618, 18710), (7484, 11545), (9236, 9355)]