20120031580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{464237}}^1$

素因数の和:464454

約数の個数: 48

約数和(自身を含む): 46327238496

約数和(自身を除く): 26207206916

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 788, 985, 1970, 2167, 3940, 4334, 8668, 10835, 21670, 43340, 464237, 928474, 1856948, 2321185, 4642370, 5106607, 9284740, 10213214, 20426428, 25533035, 51066070, 91454689, 102132140, 182909378, 365818756, 457273445, 914546890, 1006001579, 1829093780, 2012003158, 4024006316, 5030007895, 10060015790, 20120031580]

約数ペア:

[(1, 20120031580), (2, 10060015790), (4, 5030007895), (5, 4024006316), (10, 2012003158), (11, 1829093780), (20, 1006001579), (22, 914546890), (44, 457273445), (55, 365818756), (110, 182909378), (197, 102132140), (220, 91454689), (394, 51066070), (788, 25533035), (985, 20426428), (1970, 10213214), (2167, 9284740), (3940, 5106607), (4334, 4642370), (8668, 2321185), (10835, 1856948), (21670, 928474), (43340, 464237)]