78857475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{487}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 139419648

約数和(自身を除く): 60562173

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 127, 255, 381, 425, 487, 635, 1275, 1461, 1905, 2159, 2435, 3175, 6477, 7305, 8279, 9525, 10795, 12175, 24837, 32385, 36525, 41395, 53975, 61849, 124185, 161925, 185547, 206975, 309245, 620925, 927735, 1051433, 1546225, 3154299, 4638675, 5257165, 15771495, 26285825, 78857475]

約数ペア:

[(1, 78857475), (3, 26285825), (5, 15771495), (15, 5257165), (17, 4638675), (25, 3154299), (51, 1546225), (75, 1051433), (85, 927735), (127, 620925), (255, 309245), (381, 206975), (425, 185547), (487, 161925), (635, 124185), (1275, 61849), (1461, 53975), (1905, 41395), (2159, 36525), (2435, 32385), (3175, 24837), (6477, 12175), (7305, 10795), (8279, 9525)]