84640940

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{28403}}^1$

素因数の和:28561

約数の個数: 24

約数和(自身を含む): 178945200

約数和(自身を除く): 94304260

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 28403, 56806, 113612, 142015, 284030, 568060, 4232047, 8464094, 16928188, 21160235, 42320470, 84640940]

約数ペア:

[(1, 84640940), (2, 42320470), (4, 21160235), (5, 16928188), (10, 8464094), (20, 4232047), (149, 568060), (298, 284030), (596, 142015), (745, 113612), (1490, 56806), (2980, 28403)]