20520250

素因数分解:

$2^1\times 5^3\times {\mathrm{79}}^1\times {\mathrm{1039}}^1$

素因数の和:1135

約数の個数: 32

約数和(自身を含む): 38937600

約数和(自身を除く): 18417350

約数列:

[1, 2, 5, 10, 25, 50, 79, 125, 158, 250, 395, 790, 1039, 1975, 2078, 3950, 5195, 9875, 10390, 19750, 25975, 51950, 82081, 129875, 164162, 259750, 410405, 820810, 2052025, 4104050, 10260125, 20520250]

約数ペア:

[(1, 20520250), (2, 10260125), (5, 4104050), (10, 2052025), (25, 820810), (50, 410405), (79, 259750), (125, 164162), (158, 129875), (250, 82081), (395, 51950), (790, 25975), (1039, 19750), (1975, 10390), (2078, 9875), (3950, 5195)]