1720851680

素因数分解:

$2^5\times 5^1\times {\mathrm{991}}^1\times {\mathrm{10853}}^1$

素因数の和:11859

約数の個数: 48

約数和(自身を含む): 4069989504

約数和(自身を除く): 2349137824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 991, 1982, 3964, 4955, 7928, 9910, 10853, 15856, 19820, 21706, 31712, 39640, 43412, 54265, 79280, 86824, 108530, 158560, 173648, 217060, 347296, 434120, 868240, 1736480, 10755323, 21510646, 43021292, 53776615, 86042584, 107553230, 172085168, 215106460, 344170336, 430212920, 860425840, 1720851680]

約数ペア:

[(1, 1720851680), (2, 860425840), (4, 430212920), (5, 344170336), (8, 215106460), (10, 172085168), (16, 107553230), (20, 86042584), (32, 53776615), (40, 43021292), (80, 21510646), (160, 10755323), (991, 1736480), (1982, 868240), (3964, 434120), (4955, 347296), (7928, 217060), (9910, 173648), (10853, 158560), (15856, 108530), (19820, 86824), (21706, 79280), (31712, 54265), (39640, 43412)]