78820120

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{23741}}^1$

素因数の和:23835

約数の個数: 32

約数和(自身を含む): 179489520

約数和(自身を除く): 100669400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 23741, 47482, 94964, 118705, 189928, 237410, 474820, 949640, 1970503, 3941006, 7882012, 9852515, 15764024, 19705030, 39410060, 78820120]

約数ペア:

[(1, 78820120), (2, 39410060), (4, 19705030), (5, 15764024), (8, 9852515), (10, 7882012), (20, 3941006), (40, 1970503), (83, 949640), (166, 474820), (332, 237410), (415, 189928), (664, 118705), (830, 94964), (1660, 47482), (3320, 23741)]