20188378

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{257}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 36062208

約数和(自身を除く): 15873830

約数列:

[1, 2, 7, 14, 31, 62, 181, 217, 257, 362, 434, 514, 1267, 1799, 2534, 3598, 5611, 7967, 11222, 15934, 39277, 46517, 55769, 78554, 93034, 111538, 325619, 651238, 1442027, 2884054, 10094189, 20188378]

約数ペア:

[(1, 20188378), (2, 10094189), (7, 2884054), (14, 1442027), (31, 651238), (62, 325619), (181, 111538), (217, 93034), (257, 78554), (362, 55769), (434, 46517), (514, 39277), (1267, 15934), (1799, 11222), (2534, 7967), (3598, 5611)]