20955250

素因数分解:

$2^1\times 5^3\times {\mathrm{109}}^1\times {\mathrm{769}}^1$

素因数の和:895

約数の個数: 32

約数和(自身を含む): 39639600

約数和(自身を除く): 18684350

約数列:

[1, 2, 5, 10, 25, 50, 109, 125, 218, 250, 545, 769, 1090, 1538, 2725, 3845, 5450, 7690, 13625, 19225, 27250, 38450, 83821, 96125, 167642, 192250, 419105, 838210, 2095525, 4191050, 10477625, 20955250]

約数ペア:

[(1, 20955250), (2, 10477625), (5, 4191050), (10, 2095525), (25, 838210), (50, 419105), (109, 192250), (125, 167642), (218, 96125), (250, 83821), (545, 38450), (769, 27250), (1090, 19225), (1538, 13625), (2725, 7690), (3845, 5450)]