19403680

素因数分解:

$2^5\times 5^1\times {\mathrm{173}}^1\times {\mathrm{701}}^1$

素因数の和:889

約数の個数: 48

約数和(自身を含む): 46171944

約数和(自身を除く): 26768264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 173, 346, 692, 701, 865, 1384, 1402, 1730, 2768, 2804, 3460, 3505, 5536, 5608, 6920, 7010, 11216, 13840, 14020, 22432, 27680, 28040, 56080, 112160, 121273, 242546, 485092, 606365, 970184, 1212730, 1940368, 2425460, 3880736, 4850920, 9701840, 19403680]

約数ペア:

[(1, 19403680), (2, 9701840), (4, 4850920), (5, 3880736), (8, 2425460), (10, 1940368), (16, 1212730), (20, 970184), (32, 606365), (40, 485092), (80, 242546), (160, 121273), (173, 112160), (346, 56080), (692, 28040), (701, 27680), (865, 22432), (1384, 14020), (1402, 13840), (1730, 11216), (2768, 7010), (2804, 6920), (3460, 5608), (3505, 5536)]