1978424

素因数分解:

$2^3\times 7^4\times {\mathrm{103}}^1$

素因数の和:137

約数の個数: 40

約数和(自身を含む): 4369560

約数和(自身を除く): 2391136

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 103, 196, 206, 343, 392, 412, 686, 721, 824, 1372, 1442, 2401, 2744, 2884, 4802, 5047, 5768, 9604, 10094, 19208, 20188, 35329, 40376, 70658, 141316, 247303, 282632, 494606, 989212, 1978424]

約数ペア:

[(1, 1978424), (2, 989212), (4, 494606), (7, 282632), (8, 247303), (14, 141316), (28, 70658), (49, 40376), (56, 35329), (98, 20188), (103, 19208), (196, 10094), (206, 9604), (343, 5768), (392, 5047), (412, 4802), (686, 2884), (721, 2744), (824, 2401), (1372, 1442)]