18759220

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{2089}}^1$

素因数の和:2547

約数の個数: 24

約数和(自身を含む): 39501000

約数和(自身を除く): 20741780

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1796, 2089, 2245, 4178, 4490, 8356, 8980, 10445, 20890, 41780, 937961, 1875922, 3751844, 4689805, 9379610, 18759220]

約数ペア:

[(1, 18759220), (2, 9379610), (4, 4689805), (5, 3751844), (10, 1875922), (20, 937961), (449, 41780), (898, 20890), (1796, 10445), (2089, 8980), (2245, 8356), (4178, 4490)]