13991080

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1361}}^1$

素因数の和:1629

約数の個数: 32

約数和(自身を含む): 31625640

約数和(自身を除く): 17634560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 1361, 2056, 2570, 2722, 5140, 5444, 6805, 10280, 10888, 13610, 27220, 54440, 349777, 699554, 1399108, 1748885, 2798216, 3497770, 6995540, 13991080]

約数ペア:

[(1, 13991080), (2, 6995540), (4, 3497770), (5, 2798216), (8, 1748885), (10, 1399108), (20, 699554), (40, 349777), (257, 54440), (514, 27220), (1028, 13610), (1285, 10888), (1361, 10280), (2056, 6805), (2570, 5444), (2722, 5140)]