406280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1451}}^1$

素因数の和:1469

約数の個数: 32

約数和(自身を含む): 1045440

約数和(自身を除く): 639160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1451, 2902, 5804, 7255, 10157, 11608, 14510, 20314, 29020, 40628, 50785, 58040, 81256, 101570, 203140, 406280]

約数ペア:

[(1, 406280), (2, 203140), (4, 101570), (5, 81256), (7, 58040), (8, 50785), (10, 40628), (14, 29020), (20, 20314), (28, 14510), (35, 11608), (40, 10157), (56, 7255), (70, 5804), (140, 2902), (280, 1451)]