78834280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281551}}^1$

素因数の和:281569

約数の個数: 32

約数和(自身を含む): 202717440

約数和(自身を除く): 123883160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281551, 563102, 1126204, 1407755, 1970857, 2252408, 2815510, 3941714, 5631020, 7883428, 9854285, 11262040, 15766856, 19708570, 39417140, 78834280]

約数ペア:

[(1, 78834280), (2, 39417140), (4, 19708570), (5, 15766856), (7, 11262040), (8, 9854285), (10, 7883428), (14, 5631020), (20, 3941714), (28, 2815510), (35, 2252408), (40, 1970857), (56, 1407755), (70, 1126204), (140, 563102), (280, 281551)]