164023780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{200029}}^1$

素因数の和:200079

約数の個数: 24

約数和(自身を含む): 352852920

約数和(自身を除く): 188829140

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 200029, 400058, 800116, 1000145, 2000290, 4000580, 8201189, 16402378, 32804756, 41005945, 82011890, 164023780]

約数ペア:

[(1, 164023780), (2, 82011890), (4, 41005945), (5, 32804756), (10, 16402378), (20, 8201189), (41, 4000580), (82, 2000290), (164, 1000145), (205, 800116), (410, 400058), (820, 200029)]