9780778

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{5501}}^1$

素因数の和:5637

約数の個数: 16

約数和(自身を含む): 16902144

約数和(自身を除く): 7121366

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 5501, 11002, 38507, 77014, 698627, 1397254, 4890389, 9780778]

約数ペア:

[(1, 9780778), (2, 4890389), (7, 1397254), (14, 698627), (127, 77014), (254, 38507), (889, 11002), (1778, 5501)]