85581980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5479}}^1$

素因数の和:5570

約数の個数: 48

約数和(自身を含む): 198858240

約数和(自身を除く): 113276260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 5479, 7810, 10958, 15620, 21916, 27395, 54790, 60269, 109580, 120538, 241076, 301345, 389009, 602690, 778018, 1205380, 1556036, 1945045, 3890090, 4279099, 7780180, 8558198, 17116396, 21395495, 42790990, 85581980]

約数ペア:

[(1, 85581980), (2, 42790990), (4, 21395495), (5, 17116396), (10, 8558198), (11, 7780180), (20, 4279099), (22, 3890090), (44, 1945045), (55, 1556036), (71, 1205380), (110, 778018), (142, 602690), (220, 389009), (284, 301345), (355, 241076), (710, 120538), (781, 109580), (1420, 60269), (1562, 54790), (3124, 27395), (3905, 21916), (5479, 15620), (7810, 10958)]