1309540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1597}}^1$

素因数の和:1647

約数の個数: 24

約数和(自身を含む): 2818872

約数和(自身を除く): 1509332

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1597, 3194, 6388, 7985, 15970, 31940, 65477, 130954, 261908, 327385, 654770, 1309540]

約数ペア:

[(1, 1309540), (2, 654770), (4, 327385), (5, 261908), (10, 130954), (20, 65477), (41, 31940), (82, 15970), (164, 7985), (205, 6388), (410, 3194), (820, 1597)]