80797360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{647}}^1$

素因数の和:890

約数の個数: 80

約数和(自身を含む): 215986176

約数和(自身を除く): 135188816

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 223, 280, 446, 560, 647, 892, 1115, 1294, 1561, 1784, 2230, 2588, 3122, 3235, 3568, 4460, 4529, 5176, 6244, 6470, 7805, 8920, 9058, 10352, 12488, 12940, 15610, 17840, 18116, 22645, 24976, 25880, 31220, 36232, 45290, 51760, 62440, 72464, 90580, 124880, 144281, 181160, 288562, 362320, 577124, 721405, 1009967, 1154248, 1442810, 2019934, 2308496, 2885620, 4039868, 5049835, 5771240, 8079736, 10099670, 11542480, 16159472, 20199340, 40398680, 80797360]

約数ペア:

[(1, 80797360), (2, 40398680), (4, 20199340), (5, 16159472), (7, 11542480), (8, 10099670), (10, 8079736), (14, 5771240), (16, 5049835), (20, 4039868), (28, 2885620), (35, 2308496), (40, 2019934), (56, 1442810), (70, 1154248), (80, 1009967), (112, 721405), (140, 577124), (223, 362320), (280, 288562), (446, 181160), (560, 144281), (647, 124880), (892, 90580), (1115, 72464), (1294, 62440), (1561, 51760), (1784, 45290), (2230, 36232), (2588, 31220), (3122, 25880), (3235, 24976), (3568, 22645), (4460, 18116), (4529, 17840), (5176, 15610), (6244, 12940), (6470, 12488), (7805, 10352), (8920, 9058)]