7825940

素因数分解:

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

素因数の和:272

約数の個数: 48

約数和(自身を含む): 17297280

約数和(自身を除く): 9471340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 103, 116, 131, 145, 206, 262, 290, 412, 515, 524, 580, 655, 1030, 1310, 2060, 2620, 2987, 3799, 5974, 7598, 11948, 13493, 14935, 15196, 18995, 26986, 29870, 37990, 53972, 59740, 67465, 75980, 134930, 269860, 391297, 782594, 1565188, 1956485, 3912970, 7825940]

約数ペア:

[(1, 7825940), (2, 3912970), (4, 1956485), (5, 1565188), (10, 782594), (20, 391297), (29, 269860), (58, 134930), (103, 75980), (116, 67465), (131, 59740), (145, 53972), (206, 37990), (262, 29870), (290, 26986), (412, 18995), (515, 15196), (524, 14935), (580, 13493), (655, 11948), (1030, 7598), (1310, 5974), (2060, 3799), (2620, 2987)]