25993540

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2647}}^1$

素因数の和:3147

約数の個数: 24

約数和(自身を含む): 54718272

約数和(自身を除く): 28724732

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 2647, 4910, 5294, 9820, 10588, 13235, 26470, 52940, 1299677, 2599354, 5198708, 6498385, 12996770, 25993540]

約数ペア:

[(1, 25993540), (2, 12996770), (4, 6498385), (5, 5198708), (10, 2599354), (20, 1299677), (491, 52940), (982, 26470), (1964, 13235), (2455, 10588), (2647, 9820), (4910, 5294)]