12217780

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2377}}^1$

素因数の和:2643

約数の個数: 24

約数和(自身を含む): 25768008

約数和(自身を除く): 13550228

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2377, 2570, 4754, 5140, 9508, 11885, 23770, 47540, 610889, 1221778, 2443556, 3054445, 6108890, 12217780]

約数ペア:

[(1, 12217780), (2, 6108890), (4, 3054445), (5, 2443556), (10, 1221778), (20, 610889), (257, 47540), (514, 23770), (1028, 11885), (1285, 9508), (2377, 5140), (2570, 4754)]