8719220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2213}}^1$

素因数の和:2419

約数の個数: 24

約数和(自身を含む): 18411624

約数和(自身を除く): 9692404

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 2213, 3940, 4426, 8852, 11065, 22130, 44260, 435961, 871922, 1743844, 2179805, 4359610, 8719220]

約数ペア:

[(1, 8719220), (2, 4359610), (4, 2179805), (5, 1743844), (10, 871922), (20, 435961), (197, 44260), (394, 22130), (788, 11065), (985, 8852), (1970, 4426), (2213, 3940)]