65702080

素因数分解:

$2^6\times 5^1\times {\mathrm{205319}}^1$

素因数の和:205336

約数の個数: 28

約数和(自身を含む): 156453840

約数和(自身を除く): 90751760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 205319, 410638, 821276, 1026595, 1642552, 2053190, 3285104, 4106380, 6570208, 8212760, 13140416, 16425520, 32851040, 65702080]

約数ペア:

[(1, 65702080), (2, 32851040), (4, 16425520), (5, 13140416), (8, 8212760), (10, 6570208), (16, 4106380), (20, 3285104), (32, 2053190), (40, 1642552), (64, 1026595), (80, 821276), (160, 410638), (320, 205319)]