1351820

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{263}}^1$

素因数の和:529

約数の個数: 24

約数和(自身を含む): 2860704

約数和(自身を除く): 1508884

約数列:

[1, 2, 4, 5, 10, 20, 257, 263, 514, 526, 1028, 1052, 1285, 1315, 2570, 2630, 5140, 5260, 67591, 135182, 270364, 337955, 675910, 1351820]

約数ペア:

[(1, 1351820), (2, 675910), (4, 337955), (5, 270364), (10, 135182), (20, 67591), (257, 5260), (263, 5140), (514, 2630), (526, 2570), (1028, 1315), (1052, 1285)]