20170420

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2857}}^1$

素因数の和:3219

約数の個数: 24

約数和(自身を含む): 42492744

約数和(自身を除く): 22322324

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 2857, 3530, 5714, 7060, 11428, 14285, 28570, 57140, 1008521, 2017042, 4034084, 5042605, 10085210, 20170420]

約数ペア:

[(1, 20170420), (2, 10085210), (4, 5042605), (5, 4034084), (10, 2017042), (20, 1008521), (353, 57140), (706, 28570), (1412, 14285), (1765, 11428), (2857, 7060), (3530, 5714)]