78981712

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{114799}}^1$

素因数の和:114850

約数の個数: 20

約数和(自身を含む): 156587200

約数和(自身を除く): 77605488

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 114799, 229598, 459196, 918392, 1836784, 4936357, 9872714, 19745428, 39490856, 78981712]

約数ペア:

[(1, 78981712), (2, 39490856), (4, 19745428), (8, 9872714), (16, 4936357), (43, 1836784), (86, 918392), (172, 459196), (344, 229598), (688, 114799)]