219879820

素因数分解:

$2^2\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{10789}}^1$

素因数の和:11817

約数の個数: 24

約数和(自身を含む): 462243600

約数和(自身を除く): 242363780

約数列:

[1, 2, 4, 5, 10, 20, 1019, 2038, 4076, 5095, 10190, 10789, 20380, 21578, 43156, 53945, 107890, 215780, 10993991, 21987982, 43975964, 54969955, 109939910, 219879820]

約数ペア:

[(1, 219879820), (2, 109939910), (4, 54969955), (5, 43975964), (10, 21987982), (20, 10993991), (1019, 215780), (2038, 107890), (4076, 53945), (5095, 43156), (10190, 21578), (10789, 20380)]