156710920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{509}}^1$

素因数の和:742

約数の個数: 64

約数和(自身を含む): 363528000

約数和(自身を除く): 206817080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 179, 215, 344, 358, 430, 509, 716, 860, 895, 1018, 1432, 1720, 1790, 2036, 2545, 3580, 4072, 5090, 7160, 7697, 10180, 15394, 20360, 21887, 30788, 38485, 43774, 61576, 76970, 87548, 91111, 109435, 153940, 175096, 182222, 218870, 307880, 364444, 437740, 455555, 728888, 875480, 911110, 1822220, 3644440, 3917773, 7835546, 15671092, 19588865, 31342184, 39177730, 78355460, 156710920]

約数ペア:

[(1, 156710920), (2, 78355460), (4, 39177730), (5, 31342184), (8, 19588865), (10, 15671092), (20, 7835546), (40, 3917773), (43, 3644440), (86, 1822220), (172, 911110), (179, 875480), (215, 728888), (344, 455555), (358, 437740), (430, 364444), (509, 307880), (716, 218870), (860, 182222), (895, 175096), (1018, 153940), (1432, 109435), (1720, 91111), (1790, 87548), (2036, 76970), (2545, 61576), (3580, 43774), (4072, 38485), (5090, 30788), (7160, 21887), (7697, 20360), (10180, 15394)]