19403960

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{2137}}^1$

素因数の和:2375

約数の個数: 32

約数和(自身を含む): 43871760

約数和(自身を除く): 24467800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2137, 2270, 4274, 4540, 8548, 9080, 10685, 17096, 21370, 42740, 85480, 485099, 970198, 1940396, 2425495, 3880792, 4850990, 9701980, 19403960]

約数ペア:

[(1, 19403960), (2, 9701980), (4, 4850990), (5, 3880792), (8, 2425495), (10, 1940396), (20, 970198), (40, 485099), (227, 85480), (454, 42740), (908, 21370), (1135, 17096), (1816, 10685), (2137, 9080), (2270, 8548), (4274, 4540)]