31147928

素因数分解:

$2^3\times 7^2\times {\mathrm{181}}^1\times {\mathrm{439}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 68468400

約数和(自身を除く): 37320472

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 181, 196, 362, 392, 439, 724, 878, 1267, 1448, 1756, 2534, 3073, 3512, 5068, 6146, 8869, 10136, 12292, 17738, 21511, 24584, 35476, 43022, 70952, 79459, 86044, 158918, 172088, 317836, 556213, 635672, 1112426, 2224852, 3893491, 4449704, 7786982, 15573964, 31147928]

約数ペア:

[(1, 31147928), (2, 15573964), (4, 7786982), (7, 4449704), (8, 3893491), (14, 2224852), (28, 1112426), (49, 635672), (56, 556213), (98, 317836), (181, 172088), (196, 158918), (362, 86044), (392, 79459), (439, 70952), (724, 43022), (878, 35476), (1267, 24584), (1448, 21511), (1756, 17738), (2534, 12292), (3073, 10136), (3512, 8869), (5068, 6146)]