18185375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:97

約数の個数: 48

約数和(自身を含む): 26627328

約数和(自身を除く): 8441953

約数列:

[1, 5, 13, 19, 25, 31, 65, 95, 125, 155, 247, 325, 361, 403, 475, 589, 775, 1235, 1625, 1805, 2015, 2375, 2945, 3875, 4693, 6175, 7657, 9025, 10075, 11191, 14725, 23465, 30875, 38285, 45125, 50375, 55955, 73625, 117325, 145483, 191425, 279775, 586625, 727415, 957125, 1398875, 3637075, 18185375]

約数ペア:

[(1, 18185375), (5, 3637075), (13, 1398875), (19, 957125), (25, 727415), (31, 586625), (65, 279775), (95, 191425), (125, 145483), (155, 117325), (247, 73625), (325, 55955), (361, 50375), (403, 45125), (475, 38285), (589, 30875), (775, 23465), (1235, 14725), (1625, 11191), (1805, 10075), (2015, 9025), (2375, 7657), (2945, 6175), (3875, 4693)]