123339860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{991}}^1$

素因数の和:1141

約数の個数: 72

約数和(自身を含む): 303980544

約数和(自身を除く): 180640684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 127, 140, 196, 245, 254, 490, 508, 635, 889, 980, 991, 1270, 1778, 1982, 2540, 3556, 3964, 4445, 4955, 6223, 6937, 8890, 9910, 12446, 13874, 17780, 19820, 24892, 27748, 31115, 34685, 48559, 62230, 69370, 97118, 124460, 125857, 138740, 194236, 242795, 251714, 485590, 503428, 629285, 880999, 971180, 1258570, 1761998, 2517140, 3523996, 4404995, 6166993, 8809990, 12333986, 17619980, 24667972, 30834965, 61669930, 123339860]

約数ペア:

[(1, 123339860), (2, 61669930), (4, 30834965), (5, 24667972), (7, 17619980), (10, 12333986), (14, 8809990), (20, 6166993), (28, 4404995), (35, 3523996), (49, 2517140), (70, 1761998), (98, 1258570), (127, 971180), (140, 880999), (196, 629285), (245, 503428), (254, 485590), (490, 251714), (508, 242795), (635, 194236), (889, 138740), (980, 125857), (991, 124460), (1270, 97118), (1778, 69370), (1982, 62230), (2540, 48559), (3556, 34685), (3964, 31115), (4445, 27748), (4955, 24892), (6223, 19820), (6937, 17780), (8890, 13874), (9910, 12446)]