81474625

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1667}}^1$

素因数の和:1722

約数の個数: 32

約数和(自身を含む): 112409856

約数和(自身を除く): 30935231

約数列:

[1, 5, 17, 23, 25, 85, 115, 125, 391, 425, 575, 1667, 1955, 2125, 2875, 8335, 9775, 28339, 38341, 41675, 48875, 141695, 191705, 208375, 651797, 708475, 958525, 3258985, 3542375, 4792625, 16294925, 81474625]

約数ペア:

[(1, 81474625), (5, 16294925), (17, 4792625), (23, 3542375), (25, 3258985), (85, 958525), (115, 708475), (125, 651797), (391, 208375), (425, 191705), (575, 141695), (1667, 48875), (1955, 41675), (2125, 38341), (2875, 28339), (8335, 9775)]