81116440

素因数分解:

$2^3\times 5^1\times {\mathrm{2027911}}^1$

素因数の和:2027922

約数の個数: 16

約数和(自身を含む): 182512080

約数和(自身を除く): 101395640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2027911, 4055822, 8111644, 10139555, 16223288, 20279110, 40558220, 81116440]

約数ペア:

[(1, 81116440), (2, 40558220), (4, 20279110), (5, 16223288), (8, 10139555), (10, 8111644), (20, 4055822), (40, 2027911)]