74428985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 98304000

約数和(自身を除く): 23875015

約数列:

[1, 5, 19, 31, 95, 127, 155, 199, 589, 635, 995, 2413, 2945, 3781, 3937, 6169, 12065, 18905, 19685, 25273, 30845, 74803, 117211, 126365, 374015, 480187, 586055, 783463, 2400935, 3917315, 14885797, 74428985]

約数ペア:

[(1, 74428985), (5, 14885797), (19, 3917315), (31, 2400935), (95, 783463), (127, 586055), (155, 480187), (199, 374015), (589, 126365), (635, 117211), (995, 74803), (2413, 30845), (2945, 25273), (3781, 19685), (3937, 18905), (6169, 12065)]