172904140

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109433}}^1$

素因数の和:109521

約数の個数: 24

約数和(自身を含む): 367698240

約数和(自身を除く): 194794100

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 109433, 218866, 437732, 547165, 1094330, 2188660, 8645207, 17290414, 34580828, 43226035, 86452070, 172904140]

約数ペア:

[(1, 172904140), (2, 86452070), (4, 43226035), (5, 34580828), (10, 17290414), (20, 8645207), (79, 2188660), (158, 1094330), (316, 547165), (395, 437732), (790, 218866), (1580, 109433)]