3981680

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{701}}^1$

素因数の和:785

約数の個数: 40

約数和(自身を含む): 9401184

約数和(自身を除く): 5419504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 701, 710, 1136, 1402, 1420, 2804, 2840, 3505, 5608, 5680, 7010, 11216, 14020, 28040, 49771, 56080, 99542, 199084, 248855, 398168, 497710, 796336, 995420, 1990840, 3981680]

約数ペア:

[(1, 3981680), (2, 1990840), (4, 995420), (5, 796336), (8, 497710), (10, 398168), (16, 248855), (20, 199084), (40, 99542), (71, 56080), (80, 49771), (142, 28040), (284, 14020), (355, 11216), (568, 7010), (701, 5680), (710, 5608), (1136, 3505), (1402, 2840), (1420, 2804)]