79742020

素因数分解:

$2^2\times 5^1\times {\mathrm{1871}}^1\times {\mathrm{2131}}^1$

素因数の和:4011

約数の個数: 24

約数和(自身を含む): 167626368

約数和(自身を除く): 87884348

約数列:

[1, 2, 4, 5, 10, 20, 1871, 2131, 3742, 4262, 7484, 8524, 9355, 10655, 18710, 21310, 37420, 42620, 3987101, 7974202, 15948404, 19935505, 39871010, 79742020]

約数ペア:

[(1, 79742020), (2, 39871010), (4, 19935505), (5, 15948404), (10, 7974202), (20, 3987101), (1871, 42620), (2131, 37420), (3742, 21310), (4262, 18710), (7484, 10655), (8524, 9355)]