20161842860

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{108877}}^1$

素因数の和:109130

約数の個数: 48

約数和(自身を含む): 43460613504

約数和(自身を除く): 23298770644

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 197, 235, 394, 470, 788, 940, 985, 1970, 3940, 9259, 18518, 37036, 46295, 92590, 108877, 185180, 217754, 435508, 544385, 1088770, 2177540, 5117219, 10234438, 20468876, 21448769, 25586095, 42897538, 51172190, 85795076, 102344380, 107243845, 214487690, 428975380, 1008092143, 2016184286, 4032368572, 5040460715, 10080921430, 20161842860]

約数ペア:

[(1, 20161842860), (2, 10080921430), (4, 5040460715), (5, 4032368572), (10, 2016184286), (20, 1008092143), (47, 428975380), (94, 214487690), (188, 107243845), (197, 102344380), (235, 85795076), (394, 51172190), (470, 42897538), (788, 25586095), (940, 21448769), (985, 20468876), (1970, 10234438), (3940, 5117219), (9259, 2177540), (18518, 1088770), (37036, 544385), (46295, 435508), (92590, 217754), (108877, 185180)]