40740280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{145501}}^1$

素因数の和:145519

約数の個数: 32

約数和(自身を含む): 104761440

約数和(自身を除く): 64021160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 145501, 291002, 582004, 727505, 1018507, 1164008, 1455010, 2037014, 2910020, 4074028, 5092535, 5820040, 8148056, 10185070, 20370140, 40740280]

約数ペア:

[(1, 40740280), (2, 20370140), (4, 10185070), (5, 8148056), (7, 5820040), (8, 5092535), (10, 4074028), (14, 2910020), (20, 2037014), (28, 1455010), (35, 1164008), (40, 1018507), (56, 727505), (70, 582004), (140, 291002), (280, 145501)]