77871020

素因数分解:

$2^2\times 5^1\times {\mathrm{1871}}^1\times {\mathrm{2081}}^1$

素因数の和:3961

約数の個数: 24

約数和(自身を含む): 163695168

約数和(自身を除く): 85824148

約数列:

[1, 2, 4, 5, 10, 20, 1871, 2081, 3742, 4162, 7484, 8324, 9355, 10405, 18710, 20810, 37420, 41620, 3893551, 7787102, 15574204, 19467755, 38935510, 77871020]

約数ペア:

[(1, 77871020), (2, 38935510), (4, 19467755), (5, 15574204), (10, 7787102), (20, 3893551), (1871, 41620), (2081, 37420), (3742, 20810), (4162, 18710), (7484, 10405), (8324, 9355)]