73881740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{85909}}^1$

素因数の和:85961

約数の個数: 24

約数和(自身を含む): 158761680

約数和(自身を除く): 84879940

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 85909, 171818, 343636, 429545, 859090, 1718180, 3694087, 7388174, 14776348, 18470435, 36940870, 73881740]

約数ペア:

[(1, 73881740), (2, 36940870), (4, 18470435), (5, 14776348), (10, 7388174), (20, 3694087), (43, 1718180), (86, 859090), (172, 429545), (215, 343636), (430, 171818), (860, 85909)]