280210315

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{1871}}^1$

素因数の和:2283

約数の個数: 32

約数和(自身を含む): 420526080

約数和(自身を除く): 140315765

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 389, 1871, 1945, 2723, 4279, 9355, 13097, 13615, 20581, 21395, 29953, 65485, 102905, 144067, 149765, 720335, 727819, 3639095, 5094733, 8006009, 25473665, 40030045, 56042063, 280210315]

約数ペア:

[(1, 280210315), (5, 56042063), (7, 40030045), (11, 25473665), (35, 8006009), (55, 5094733), (77, 3639095), (385, 727819), (389, 720335), (1871, 149765), (1945, 144067), (2723, 102905), (4279, 65485), (9355, 29953), (13097, 21395), (13615, 20581)]