1440460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{10289}}^1$

素因数の和:10305

約数の個数: 24

約数和(自身を含む): 3457440

約数和(自身を除く): 2016980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 10289, 20578, 41156, 51445, 72023, 102890, 144046, 205780, 288092, 360115, 720230, 1440460]

約数ペア:

[(1, 1440460), (2, 720230), (4, 360115), (5, 288092), (7, 205780), (10, 144046), (14, 102890), (20, 72023), (28, 51445), (35, 41156), (70, 20578), (140, 10289)]