68280580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83269}}^1$

素因数の和:83319

約数の個数: 24

約数和(自身を含む): 146888280

約数和(自身を除く): 78607700

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 83269, 166538, 333076, 416345, 832690, 1665380, 3414029, 6828058, 13656116, 17070145, 34140290, 68280580]

約数ペア:

[(1, 68280580), (2, 34140290), (4, 17070145), (5, 13656116), (10, 6828058), (20, 3414029), (41, 1665380), (82, 832690), (164, 416345), (205, 333076), (410, 166538), (820, 83269)]