31303760

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:276

約数の個数: 80

約数和(自身を含む): 76602240

約数和(自身を除く): 45298480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 103, 116, 131, 145, 206, 232, 262, 290, 412, 464, 515, 524, 580, 655, 824, 1030, 1048, 1160, 1310, 1648, 2060, 2096, 2320, 2620, 2987, 3799, 4120, 5240, 5974, 7598, 8240, 10480, 11948, 13493, 14935, 15196, 18995, 23896, 26986, 29870, 30392, 37990, 47792, 53972, 59740, 60784, 67465, 75980, 107944, 119480, 134930, 151960, 215888, 238960, 269860, 303920, 391297, 539720, 782594, 1079440, 1565188, 1956485, 3130376, 3912970, 6260752, 7825940, 15651880, 31303760]

約数ペア:

[(1, 31303760), (2, 15651880), (4, 7825940), (5, 6260752), (8, 3912970), (10, 3130376), (16, 1956485), (20, 1565188), (29, 1079440), (40, 782594), (58, 539720), (80, 391297), (103, 303920), (116, 269860), (131, 238960), (145, 215888), (206, 151960), (232, 134930), (262, 119480), (290, 107944), (412, 75980), (464, 67465), (515, 60784), (524, 59740), (580, 53972), (655, 47792), (824, 37990), (1030, 30392), (1048, 29870), (1160, 26986), (1310, 23896), (1648, 18995), (2060, 15196), (2096, 14935), (2320, 13493), (2620, 11948), (2987, 10480), (3799, 8240), (4120, 7598), (5240, 5974)]