2015557375

素因数分解:

$5^3\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{1307}}^1$

素因数の和:1421

約数の個数: 48

約数和(自身を含む): 2763218016

約数和(自身を除く): 747660641

約数列:

[1, 5, 13, 25, 65, 73, 125, 169, 325, 365, 845, 949, 1307, 1625, 1825, 4225, 4745, 6535, 9125, 12337, 16991, 21125, 23725, 32675, 61685, 84955, 95411, 118625, 163375, 220883, 308425, 424775, 477055, 1104415, 1240343, 1542125, 2123875, 2385275, 5522075, 6201715, 11926375, 16124459, 27610375, 31008575, 80622295, 155042875, 403111475, 2015557375]

約数ペア:

[(1, 2015557375), (5, 403111475), (13, 155042875), (25, 80622295), (65, 31008575), (73, 27610375), (125, 16124459), (169, 11926375), (325, 6201715), (365, 5522075), (845, 2385275), (949, 2123875), (1307, 1542125), (1625, 1240343), (1825, 1104415), (4225, 477055), (4745, 424775), (6535, 308425), (9125, 220883), (12337, 163375), (16991, 118625), (21125, 95411), (23725, 84955), (32675, 61685)]