201440420

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{64153}}^1$

素因数の和:64319

約数の個数: 24

約数和(自身を含む): 425725944

約数和(自身を除く): 224285524

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 64153, 128306, 256612, 320765, 641530, 1283060, 10072021, 20144042, 40288084, 50360105, 100720210, 201440420]

約数ペア:

[(1, 201440420), (2, 100720210), (4, 50360105), (5, 40288084), (10, 20144042), (20, 10072021), (157, 1283060), (314, 641530), (628, 320765), (785, 256612), (1570, 128306), (3140, 64153)]