19267780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19661}}^1$

素因数の和:19684

約数の個数: 36

約数和(自身を含む): 47070828

約数和(自身を除く): 27803048

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19661, 39322, 78644, 98305, 137627, 196610, 275254, 393220, 550508, 688135, 963389, 1376270, 1926778, 2752540, 3853556, 4816945, 9633890, 19267780]

約数ペア:

[(1, 19267780), (2, 9633890), (4, 4816945), (5, 3853556), (7, 2752540), (10, 1926778), (14, 1376270), (20, 963389), (28, 688135), (35, 550508), (49, 393220), (70, 275254), (98, 196610), (140, 137627), (196, 98305), (245, 78644), (490, 39322), (980, 19661)]