989656800560

素因数分解:

$2^4\times 5^1\times {\mathrm{12370710007}}^1$

素因数の和:12370710020

約数の個数: 20

約数和(自身を含む): 2300952061488

約数和(自身を除く): 1311295260928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12370710007, 24741420014, 49482840028, 61853550035, 98965680056, 123707100070, 197931360112, 247414200140, 494828400280, 989656800560]

約数ペア:

[(1, 989656800560), (2, 494828400280), (4, 247414200140), (5, 197931360112), (8, 123707100070), (10, 98965680056), (16, 61853550035), (20, 49482840028), (40, 24741420014), (80, 12370710007)]