64127375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 95047680

約数和(自身を除く): 30920305

約数列:

[1, 5, 13, 19, 25, 31, 65, 67, 95, 125, 155, 247, 325, 335, 403, 475, 589, 775, 871, 1235, 1273, 1625, 1675, 2015, 2077, 2375, 2945, 3875, 4355, 6175, 6365, 7657, 8375, 10075, 10385, 14725, 16549, 21775, 27001, 30875, 31825, 38285, 39463, 50375, 51925, 73625, 82745, 108875, 135005, 159125, 191425, 197315, 259625, 413725, 513019, 675025, 957125, 986575, 2068625, 2565095, 3375125, 4932875, 12825475, 64127375]

約数ペア:

[(1, 64127375), (5, 12825475), (13, 4932875), (19, 3375125), (25, 2565095), (31, 2068625), (65, 986575), (67, 957125), (95, 675025), (125, 513019), (155, 413725), (247, 259625), (325, 197315), (335, 191425), (403, 159125), (475, 135005), (589, 108875), (775, 82745), (871, 73625), (1235, 51925), (1273, 50375), (1625, 39463), (1675, 38285), (2015, 31825), (2077, 30875), (2375, 27001), (2945, 21775), (3875, 16549), (4355, 14725), (6175, 10385), (6365, 10075), (7657, 8375)]