20180875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1129}}^1$

素因数の和:1168

約数の個数: 32

約数和(自身を含む): 29615040

約数和(自身を除く): 9434165

約数列:

[1, 5, 11, 13, 25, 55, 65, 125, 143, 275, 325, 715, 1129, 1375, 1625, 3575, 5645, 12419, 14677, 17875, 28225, 62095, 73385, 141125, 161447, 310475, 366925, 807235, 1552375, 1834625, 4036175, 20180875]

約数ペア:

[(1, 20180875), (5, 4036175), (11, 1834625), (13, 1552375), (25, 807235), (55, 366925), (65, 310475), (125, 161447), (143, 141125), (275, 73385), (325, 62095), (715, 28225), (1129, 17875), (1375, 14677), (1625, 12419), (3575, 5645)]