51802020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{287789}}^1$

素因数の和:287804

約数の個数: 36

約数和(自身を含む): 157133340

約数和(自身を除く): 105331320

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 287789, 575578, 863367, 1151156, 1438945, 1726734, 2590101, 2877890, 3453468, 4316835, 5180202, 5755780, 8633670, 10360404, 12950505, 17267340, 25901010, 51802020]

約数ペア:

[(1, 51802020), (2, 25901010), (3, 17267340), (4, 12950505), (5, 10360404), (6, 8633670), (9, 5755780), (10, 5180202), (12, 4316835), (15, 3453468), (18, 2877890), (20, 2590101), (30, 1726734), (36, 1438945), (45, 1151156), (60, 863367), (90, 575578), (180, 287789)]