28287340

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{2477}}^1$

素因数の和:3057

約数の個数: 24

約数和(自身を含む): 59531472

約数和(自身を除く): 31244132

約数列:

[1, 2, 4, 5, 10, 20, 571, 1142, 2284, 2477, 2855, 4954, 5710, 9908, 11420, 12385, 24770, 49540, 1414367, 2828734, 5657468, 7071835, 14143670, 28287340]

約数ペア:

[(1, 28287340), (2, 14143670), (4, 7071835), (5, 5657468), (10, 2828734), (20, 1414367), (571, 49540), (1142, 24770), (2284, 12385), (2477, 11420), (2855, 9908), (4954, 5710)]