815080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:130

約数の個数: 64

約数和(自身を含む): 2177280

約数和(自身を除く): 1362200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 71, 82, 140, 142, 164, 205, 280, 284, 287, 328, 355, 410, 497, 568, 574, 710, 820, 994, 1148, 1420, 1435, 1640, 1988, 2296, 2485, 2840, 2870, 2911, 3976, 4970, 5740, 5822, 9940, 11480, 11644, 14555, 19880, 20377, 23288, 29110, 40754, 58220, 81508, 101885, 116440, 163016, 203770, 407540, 815080]

約数ペア:

[(1, 815080), (2, 407540), (4, 203770), (5, 163016), (7, 116440), (8, 101885), (10, 81508), (14, 58220), (20, 40754), (28, 29110), (35, 23288), (40, 20377), (41, 19880), (56, 14555), (70, 11644), (71, 11480), (82, 9940), (140, 5822), (142, 5740), (164, 4970), (205, 3976), (280, 2911), (284, 2870), (287, 2840), (328, 2485), (355, 2296), (410, 1988), (497, 1640), (568, 1435), (574, 1420), (710, 1148), (820, 994)]