16651420

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{5303}}^1$

素因数の和:5469

約数の個数: 24

約数和(自身を含む): 35197344

約数和(自身を除く): 18545924

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 5303, 10606, 21212, 26515, 53030, 106060, 832571, 1665142, 3330284, 4162855, 8325710, 16651420]

約数ペア:

[(1, 16651420), (2, 8325710), (4, 4162855), (5, 3330284), (10, 1665142), (20, 832571), (157, 106060), (314, 53030), (628, 26515), (785, 21212), (1570, 10606), (3140, 5303)]