289696540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2069261}}^1$

素因数の和:2069277

約数の個数: 24

約数和(自身を含む): 695272032

約数和(自身を除く): 405575492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2069261, 4138522, 8277044, 10346305, 14484827, 20692610, 28969654, 41385220, 57939308, 72424135, 144848270, 289696540]

約数ペア:

[(1, 289696540), (2, 144848270), (4, 72424135), (5, 57939308), (7, 41385220), (10, 28969654), (14, 20692610), (20, 14484827), (28, 10346305), (35, 8277044), (70, 4138522), (140, 2069261)]