81603740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{240011}}^1$

素因数の和:240037

約数の個数: 24

約数和(自身を含む): 181449072

約数和(自身を除く): 99845332

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 240011, 480022, 960044, 1200055, 2400110, 4080187, 4800220, 8160374, 16320748, 20400935, 40801870, 81603740]

約数ペア:

[(1, 81603740), (2, 40801870), (4, 20400935), (5, 16320748), (10, 8160374), (17, 4800220), (20, 4080187), (34, 2400110), (68, 1200055), (85, 960044), (170, 480022), (340, 240011)]