13477280

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{643}}^1$

素因数の和:789

約数の個数: 48

約数和(自身を含む): 32133024

約数和(自身を除く): 18655744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 643, 655, 1048, 1286, 1310, 2096, 2572, 2620, 3215, 4192, 5144, 5240, 6430, 10288, 10480, 12860, 20576, 20960, 25720, 51440, 84233, 102880, 168466, 336932, 421165, 673864, 842330, 1347728, 1684660, 2695456, 3369320, 6738640, 13477280]

約数ペア:

[(1, 13477280), (2, 6738640), (4, 3369320), (5, 2695456), (8, 1684660), (10, 1347728), (16, 842330), (20, 673864), (32, 421165), (40, 336932), (80, 168466), (131, 102880), (160, 84233), (262, 51440), (524, 25720), (643, 20960), (655, 20576), (1048, 12860), (1286, 10480), (1310, 10288), (2096, 6430), (2572, 5240), (2620, 5144), (3215, 4192)]