20512085660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{297881}}^1$

素因数の和:298214

約数の個数: 48

約数和(自身を含む): 47141613792

約数和(自身を除く): 26629528132

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 313, 626, 1252, 1565, 3130, 3443, 6260, 6886, 13772, 17215, 34430, 68860, 297881, 595762, 1191524, 1489405, 2978810, 3276691, 5957620, 6553382, 13106764, 16383455, 32766910, 65533820, 93236753, 186473506, 372947012, 466183765, 932367530, 1025604283, 1864735060, 2051208566, 4102417132, 5128021415, 10256042830, 20512085660]

約数ペア:

[(1, 20512085660), (2, 10256042830), (4, 5128021415), (5, 4102417132), (10, 2051208566), (11, 1864735060), (20, 1025604283), (22, 932367530), (44, 466183765), (55, 372947012), (110, 186473506), (220, 93236753), (313, 65533820), (626, 32766910), (1252, 16383455), (1565, 13106764), (3130, 6553382), (3443, 5957620), (6260, 3276691), (6886, 2978810), (13772, 1489405), (17215, 1191524), (34430, 595762), (68860, 297881)]