647860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1117}}^1$

素因数の和:1155

約数の個数: 24

約数和(自身を含む): 1408680

約数和(自身を除く): 760820

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 1117, 2234, 4468, 5585, 11170, 22340, 32393, 64786, 129572, 161965, 323930, 647860]

約数ペア:

[(1, 647860), (2, 323930), (4, 161965), (5, 129572), (10, 64786), (20, 32393), (29, 22340), (58, 11170), (116, 5585), (145, 4468), (290, 2234), (580, 1117)]