491700145

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{839}}^1$

素因数の和:1093

約数の個数: 32

約数和(自身を含む): 645120000

約数和(自身を除く): 153419855

約数列:

[1, 5, 19, 31, 95, 155, 199, 589, 839, 995, 2945, 3781, 4195, 6169, 15941, 18905, 26009, 30845, 79705, 117211, 130045, 166961, 494171, 586055, 834805, 2470855, 3172259, 5175791, 15861295, 25878955, 98340029, 491700145]

約数ペア:

[(1, 491700145), (5, 98340029), (19, 25878955), (31, 15861295), (95, 5175791), (155, 3172259), (199, 2470855), (589, 834805), (839, 586055), (995, 494171), (2945, 166961), (3781, 130045), (4195, 117211), (6169, 79705), (15941, 30845), (18905, 26009)]