2053180

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{409}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 4339440

約数和(自身を除く): 2286260

約数列:

[1, 2, 4, 5, 10, 20, 251, 409, 502, 818, 1004, 1255, 1636, 2045, 2510, 4090, 5020, 8180, 102659, 205318, 410636, 513295, 1026590, 2053180]

約数ペア:

[(1, 2053180), (2, 1026590), (4, 513295), (5, 410636), (10, 205318), (20, 102659), (251, 8180), (409, 5020), (502, 4090), (818, 2510), (1004, 2045), (1255, 1636)]