18547690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1031}}^1$

素因数の和:1302

約数の個数: 32

約数和(自身を含む): 38340864

約数和(自身を除く): 19793174

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 257, 514, 1031, 1285, 1799, 2062, 2570, 3598, 5155, 7217, 8995, 10310, 14434, 17990, 36085, 72170, 264967, 529934, 1324835, 1854769, 2649670, 3709538, 9273845, 18547690]

約数ペア:

[(1, 18547690), (2, 9273845), (5, 3709538), (7, 2649670), (10, 1854769), (14, 1324835), (35, 529934), (70, 264967), (257, 72170), (514, 36085), (1031, 17990), (1285, 14434), (1799, 10310), (2062, 8995), (2570, 7217), (3598, 5155)]