199426540

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1\times {\mathrm{739}}^1$

素因数の和:982

約数の個数: 48

約数和(自身を含む): 426666240

約数和(自身を除く): 227239700

約数列:

[1, 2, 4, 5, 10, 20, 103, 131, 206, 262, 412, 515, 524, 655, 739, 1030, 1310, 1478, 2060, 2620, 2956, 3695, 7390, 13493, 14780, 26986, 53972, 67465, 76117, 96809, 134930, 152234, 193618, 269860, 304468, 380585, 387236, 484045, 761170, 968090, 1522340, 1936180, 9971327, 19942654, 39885308, 49856635, 99713270, 199426540]

約数ペア:

[(1, 199426540), (2, 99713270), (4, 49856635), (5, 39885308), (10, 19942654), (20, 9971327), (103, 1936180), (131, 1522340), (206, 968090), (262, 761170), (412, 484045), (515, 387236), (524, 380585), (655, 304468), (739, 269860), (1030, 193618), (1310, 152234), (1478, 134930), (2060, 96809), (2620, 76117), (2956, 67465), (3695, 53972), (7390, 26986), (13493, 14780)]