264845720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389479}}^1$

素因数の和:389507

約数の個数: 32

約数和(自身を含む): 630957600

約数和(自身を除く): 366111880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 389479, 778958, 1557916, 1947395, 3115832, 3894790, 6621143, 7789580, 13242286, 15579160, 26484572, 33105715, 52969144, 66211430, 132422860, 264845720]

約数ペア:

[(1, 264845720), (2, 132422860), (4, 66211430), (5, 52969144), (8, 33105715), (10, 26484572), (17, 15579160), (20, 13242286), (34, 7789580), (40, 6621143), (68, 3894790), (85, 3115832), (136, 1947395), (170, 1557916), (340, 778958), (680, 389479)]