720796678

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^2\times {\mathrm{211}}^1$

素因数の和:449

約数の個数: 48

約数和(自身を含む): 1308185856

約数和(自身を除く): 587389178

約数列:

[1, 2, 7, 14, 23, 46, 103, 161, 206, 211, 322, 422, 721, 1442, 1477, 2369, 2954, 4738, 4853, 9706, 10609, 16583, 21218, 21733, 33166, 33971, 43466, 67942, 74263, 148526, 152131, 244007, 304262, 488014, 499859, 999718, 1708049, 2238499, 3416098, 3499013, 4476998, 6998026, 15669493, 31338986, 51485477, 102970954, 360398339, 720796678]

約数ペア:

[(1, 720796678), (2, 360398339), (7, 102970954), (14, 51485477), (23, 31338986), (46, 15669493), (103, 6998026), (161, 4476998), (206, 3499013), (211, 3416098), (322, 2238499), (422, 1708049), (721, 999718), (1442, 499859), (1477, 488014), (2369, 304262), (2954, 244007), (4738, 152131), (4853, 148526), (9706, 74263), (10609, 67942), (16583, 43466), (21218, 33971), (21733, 33166)]