76640240

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:318

約数の個数: 80

約数和(自身を含む): 183845376

約数和(自身を除く): 107205136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 103, 131, 142, 206, 262, 284, 355, 412, 515, 524, 568, 655, 710, 824, 1030, 1048, 1136, 1310, 1420, 1648, 2060, 2096, 2620, 2840, 4120, 5240, 5680, 7313, 8240, 9301, 10480, 13493, 14626, 18602, 26986, 29252, 36565, 37204, 46505, 53972, 58504, 67465, 73130, 74408, 93010, 107944, 117008, 134930, 146260, 148816, 186020, 215888, 269860, 292520, 372040, 539720, 585040, 744080, 958003, 1079440, 1916006, 3832012, 4790015, 7664024, 9580030, 15328048, 19160060, 38320120, 76640240]

約数ペア:

[(1, 76640240), (2, 38320120), (4, 19160060), (5, 15328048), (8, 9580030), (10, 7664024), (16, 4790015), (20, 3832012), (40, 1916006), (71, 1079440), (80, 958003), (103, 744080), (131, 585040), (142, 539720), (206, 372040), (262, 292520), (284, 269860), (355, 215888), (412, 186020), (515, 148816), (524, 146260), (568, 134930), (655, 117008), (710, 107944), (824, 93010), (1030, 74408), (1048, 73130), (1136, 67465), (1310, 58504), (1420, 53972), (1648, 46505), (2060, 37204), (2096, 36565), (2620, 29252), (2840, 26986), (4120, 18602), (5240, 14626), (5680, 13493), (7313, 10480), (8240, 9301)]