78799120

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 188952192

約数和(自身を除く): 110153072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 103, 131, 146, 206, 262, 292, 365, 412, 515, 524, 584, 655, 730, 824, 1030, 1048, 1168, 1310, 1460, 1648, 2060, 2096, 2620, 2920, 4120, 5240, 5840, 7519, 8240, 9563, 10480, 13493, 15038, 19126, 26986, 30076, 37595, 38252, 47815, 53972, 60152, 67465, 75190, 76504, 95630, 107944, 120304, 134930, 150380, 153008, 191260, 215888, 269860, 300760, 382520, 539720, 601520, 765040, 984989, 1079440, 1969978, 3939956, 4924945, 7879912, 9849890, 15759824, 19699780, 39399560, 78799120]

約数ペア:

[(1, 78799120), (2, 39399560), (4, 19699780), (5, 15759824), (8, 9849890), (10, 7879912), (16, 4924945), (20, 3939956), (40, 1969978), (73, 1079440), (80, 984989), (103, 765040), (131, 601520), (146, 539720), (206, 382520), (262, 300760), (292, 269860), (365, 215888), (412, 191260), (515, 153008), (524, 150380), (584, 134930), (655, 120304), (730, 107944), (824, 95630), (1030, 76504), (1048, 75190), (1168, 67465), (1310, 60152), (1460, 53972), (1648, 47815), (2060, 38252), (2096, 37595), (2620, 30076), (2920, 26986), (4120, 19126), (5240, 15038), (5840, 13493), (7519, 10480), (8240, 9563)]