20180887960

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6911263}}^1$

素因数の和:6911347

約数の個数: 32

約数和(自身を含む): 46029018240

約数和(自身を除く): 25848130280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6911263, 13822526, 27645052, 34556315, 55290104, 69112630, 138225260, 276450520, 504522199, 1009044398, 2018088796, 2522610995, 4036177592, 5045221990, 10090443980, 20180887960]

約数ペア:

[(1, 20180887960), (2, 10090443980), (4, 5045221990), (5, 4036177592), (8, 2522610995), (10, 2018088796), (20, 1009044398), (40, 504522199), (73, 276450520), (146, 138225260), (292, 69112630), (365, 55290104), (584, 34556315), (730, 27645052), (1460, 13822526), (2920, 6911263)]