54511720

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 126023040

約数和(自身を除く): 71511320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 103, 131, 202, 206, 262, 404, 412, 505, 515, 524, 655, 808, 824, 1010, 1030, 1048, 1310, 2020, 2060, 2620, 4040, 4120, 5240, 10403, 13231, 13493, 20806, 26462, 26986, 41612, 52015, 52924, 53972, 66155, 67465, 83224, 104030, 105848, 107944, 132310, 134930, 208060, 264620, 269860, 416120, 529240, 539720, 1362793, 2725586, 5451172, 6813965, 10902344, 13627930, 27255860, 54511720]

約数ペア:

[(1, 54511720), (2, 27255860), (4, 13627930), (5, 10902344), (8, 6813965), (10, 5451172), (20, 2725586), (40, 1362793), (101, 539720), (103, 529240), (131, 416120), (202, 269860), (206, 264620), (262, 208060), (404, 134930), (412, 132310), (505, 107944), (515, 105848), (524, 104030), (655, 83224), (808, 67465), (824, 66155), (1010, 53972), (1030, 52924), (1048, 52015), (1310, 41612), (2020, 26986), (2060, 26462), (2620, 20806), (4040, 13493), (4120, 13231), (5240, 10403)]