20131378220

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1860571}}^1$

素因数の和:1861121

約数の個数: 24

約数和(自身を含む): 42354061008

約数和(自身を除く): 22222682788

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 2164, 2705, 5410, 10820, 1860571, 3721142, 7442284, 9302855, 18605710, 37211420, 1006568911, 2013137822, 4026275644, 5032844555, 10065689110, 20131378220]

約数ペア:

[(1, 20131378220), (2, 10065689110), (4, 5032844555), (5, 4026275644), (10, 2013137822), (20, 1006568911), (541, 37211420), (1082, 18605710), (2164, 9302855), (2705, 7442284), (5410, 3721142), (10820, 1860571)]