2122190

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 48

約数和(自身を含む): 4580064

約数和(自身を除く): 2457874

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 71, 98, 122, 142, 245, 305, 355, 427, 490, 497, 610, 710, 854, 994, 2135, 2485, 2989, 3479, 4270, 4331, 4970, 5978, 6958, 8662, 14945, 17395, 21655, 29890, 30317, 34790, 43310, 60634, 151585, 212219, 303170, 424438, 1061095, 2122190]

約数ペア:

[(1, 2122190), (2, 1061095), (5, 424438), (7, 303170), (10, 212219), (14, 151585), (35, 60634), (49, 43310), (61, 34790), (70, 30317), (71, 29890), (98, 21655), (122, 17395), (142, 14945), (245, 8662), (305, 6958), (355, 5978), (427, 4970), (490, 4331), (497, 4270), (610, 3479), (710, 2989), (854, 2485), (994, 2135)]