20512355875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{3613}}^1\times {\mathrm{4129}}^1$

素因数の和:7768

約数の個数: 32

約数和(自身を含む): 27941135040

約数和(自身を除く): 7428779165

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 3613, 4129, 18065, 20645, 39743, 45419, 90325, 103225, 198715, 227095, 451625, 516125, 993575, 1135475, 4967875, 5677375, 14918077, 74590385, 164098847, 372951925, 820494235, 1864759625, 4102471175, 20512355875]

約数ペア:

[(1, 20512355875), (5, 4102471175), (11, 1864759625), (25, 820494235), (55, 372951925), (125, 164098847), (275, 74590385), (1375, 14918077), (3613, 5677375), (4129, 4967875), (18065, 1135475), (20645, 993575), (39743, 516125), (45419, 451625), (90325, 227095), (103225, 198715)]