2660210

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 5725080

約数和(自身を除く): 3064870

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 89, 98, 122, 178, 245, 305, 427, 445, 490, 610, 623, 854, 890, 1246, 2135, 2989, 3115, 4270, 4361, 5429, 5978, 6230, 8722, 10858, 14945, 21805, 27145, 29890, 38003, 43610, 54290, 76006, 190015, 266021, 380030, 532042, 1330105, 2660210]

約数ペア:

[(1, 2660210), (2, 1330105), (5, 532042), (7, 380030), (10, 266021), (14, 190015), (35, 76006), (49, 54290), (61, 43610), (70, 38003), (89, 29890), (98, 27145), (122, 21805), (178, 14945), (245, 10858), (305, 8722), (427, 6230), (445, 5978), (490, 5429), (610, 4361), (623, 4270), (854, 3115), (890, 2989), (1246, 2135)]