1338242690

素因数分解:

$2^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{520717}}^1$

素因数の和:520981

約数の個数: 16

約数和(自身を含む): 2418214392

約数和(自身を除く): 1079971702

約数列:

[1, 2, 5, 10, 257, 514, 1285, 2570, 520717, 1041434, 2603585, 5207170, 133824269, 267648538, 669121345, 1338242690]

約数ペア:

[(1, 1338242690), (2, 669121345), (5, 267648538), (10, 133824269), (257, 5207170), (514, 2603585), (1285, 1041434), (2570, 520717)]