388889475

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{2447}}^1$

素因数の和:2636

約数の個数: 48

約数和(自身を含む): 696955392

約数和(自身を除く): 308065917

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 163, 195, 325, 489, 815, 975, 2119, 2445, 2447, 4075, 6357, 7341, 10595, 12225, 12235, 31785, 31811, 36705, 52975, 61175, 95433, 158925, 159055, 183525, 398861, 477165, 795275, 1196583, 1994305, 2385825, 5185193, 5982915, 9971525, 15555579, 25925965, 29914575, 77777895, 129629825, 388889475]

約数ペア:

[(1, 388889475), (3, 129629825), (5, 77777895), (13, 29914575), (15, 25925965), (25, 15555579), (39, 9971525), (65, 5982915), (75, 5185193), (163, 2385825), (195, 1994305), (325, 1196583), (489, 795275), (815, 477165), (975, 398861), (2119, 183525), (2445, 159055), (2447, 158925), (4075, 95433), (6357, 61175), (7341, 52975), (10595, 36705), (12225, 31811), (12235, 31785)]