20565944060

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^2\times {\mathrm{54787}}^1$

素因数の和:55070

約数の個数: 36

約数和(自身を含む): 43506822072

約数和(自身を除く): 22940878012

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 18769, 37538, 54787, 75076, 93845, 109574, 187690, 219148, 273935, 375380, 547870, 1095740, 7505819, 15011638, 30023276, 37529095, 75058190, 150116380, 1028297203, 2056594406, 4113188812, 5141486015, 10282972030, 20565944060]

約数ペア:

[(1, 20565944060), (2, 10282972030), (4, 5141486015), (5, 4113188812), (10, 2056594406), (20, 1028297203), (137, 150116380), (274, 75058190), (548, 37529095), (685, 30023276), (1370, 15011638), (2740, 7505819), (18769, 1095740), (37538, 547870), (54787, 375380), (75076, 273935), (93845, 219148), (109574, 187690)]