13428980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{311}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 30191616

約数和(自身を除く): 16762636

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 127, 170, 254, 311, 340, 508, 622, 635, 1244, 1270, 1555, 2159, 2540, 3110, 4318, 5287, 6220, 8636, 10574, 10795, 21148, 21590, 26435, 39497, 43180, 52870, 78994, 105740, 157988, 197485, 394970, 671449, 789940, 1342898, 2685796, 3357245, 6714490, 13428980]

約数ペア:

[(1, 13428980), (2, 6714490), (4, 3357245), (5, 2685796), (10, 1342898), (17, 789940), (20, 671449), (34, 394970), (68, 197485), (85, 157988), (127, 105740), (170, 78994), (254, 52870), (311, 43180), (340, 39497), (508, 26435), (622, 21590), (635, 21148), (1244, 10795), (1270, 10574), (1555, 8636), (2159, 6220), (2540, 5287), (3110, 4318)]