161988740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{188359}}^1$

素因数の和:188411

約数の個数: 24

約数和(自身を含む): 348089280

約数和(自身を除く): 186100540

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 188359, 376718, 753436, 941795, 1883590, 3767180, 8099437, 16198874, 32397748, 40497185, 80994370, 161988740]

約数ペア:

[(1, 161988740), (2, 80994370), (4, 40497185), (5, 32397748), (10, 16198874), (20, 8099437), (43, 3767180), (86, 1883590), (172, 941795), (215, 753436), (430, 376718), (860, 188359)]