20205220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144323}}^1$

素因数の和:144339

約数の個数: 24

約数和(自身を含む): 48492864

約数和(自身を除く): 28287644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144323, 288646, 577292, 721615, 1010261, 1443230, 2020522, 2886460, 4041044, 5051305, 10102610, 20205220]

約数ペア:

[(1, 20205220), (2, 10102610), (4, 5051305), (5, 4041044), (7, 2886460), (10, 2020522), (14, 1443230), (20, 1010261), (28, 721615), (35, 577292), (70, 288646), (140, 144323)]