25968040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13249}}^1$

素因数の和:13274

約数の個数: 48

約数和(自身を含む): 67972500

約数和(自身を除く): 42004460

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 13249, 26498, 52996, 66245, 92743, 105992, 132490, 185486, 264980, 370972, 463715, 529960, 649201, 741944, 927430, 1298402, 1854860, 2596804, 3246005, 3709720, 5193608, 6492010, 12984020, 25968040]

約数ペア:

[(1, 25968040), (2, 12984020), (4, 6492010), (5, 5193608), (7, 3709720), (8, 3246005), (10, 2596804), (14, 1854860), (20, 1298402), (28, 927430), (35, 741944), (40, 649201), (49, 529960), (56, 463715), (70, 370972), (98, 264980), (140, 185486), (196, 132490), (245, 105992), (280, 92743), (392, 66245), (490, 52996), (980, 26498), (1960, 13249)]