680208680

素因数分解:

$2^3\times 5^1\times {\mathrm{17005217}}^1$

素因数の和:17005228

約数の個数: 16

約数和(自身を含む): 1530469620

約数和(自身を除く): 850260940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 17005217, 34010434, 68020868, 85026085, 136041736, 170052170, 340104340, 680208680]

約数ペア:

[(1, 680208680), (2, 340104340), (4, 170052170), (5, 136041736), (8, 85026085), (10, 68020868), (20, 34010434), (40, 17005217)]