19403740

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{11689}}^1$

素因数の和:11781

約数の個数: 24

約数和(自身を含む): 41242320

約数和(自身を除く): 21838580

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 11689, 23378, 46756, 58445, 116890, 233780, 970187, 1940374, 3880748, 4850935, 9701870, 19403740]

約数ペア:

[(1, 19403740), (2, 9701870), (4, 4850935), (5, 3880748), (10, 1940374), (20, 970187), (83, 233780), (166, 116890), (332, 58445), (415, 46756), (830, 23378), (1660, 11689)]