178987390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{383}}^1\times {\mathrm{2749}}^1$

素因数の和:3156

約数の個数: 32

約数和(自身を含む): 342144000

約数和(自身を除く): 163156610

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 383, 766, 1915, 2749, 3830, 5498, 6511, 13022, 13745, 27490, 32555, 46733, 65110, 93466, 233665, 467330, 1052867, 2105734, 5264335, 10528670, 17898739, 35797478, 89493695, 178987390]

約数ペア:

[(1, 178987390), (2, 89493695), (5, 35797478), (10, 17898739), (17, 10528670), (34, 5264335), (85, 2105734), (170, 1052867), (383, 467330), (766, 233665), (1915, 93466), (2749, 65110), (3830, 46733), (5498, 32555), (6511, 27490), (13022, 13745)]