39730420

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{12653}}^1$

素因数の和:12819

約数の個数: 24

約数和(自身を含む): 83971944

約数和(自身を除く): 44241524

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 12653, 25306, 50612, 63265, 126530, 253060, 1986521, 3973042, 7946084, 9932605, 19865210, 39730420]

約数ペア:

[(1, 39730420), (2, 19865210), (4, 9932605), (5, 7946084), (10, 3973042), (20, 1986521), (157, 253060), (314, 126530), (628, 63265), (785, 50612), (1570, 25306), (3140, 12653)]