20565578908

素因数分解:

$2^2\times 7^3\times {\mathrm{191}}^1\times {\mathrm{78479}}^1$

素因数の和:78695

約数の個数: 48

約数和(自身を含む): 42190848000

約数和(自身を除く): 21625269092

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 191, 196, 343, 382, 686, 764, 1337, 1372, 2674, 5348, 9359, 18718, 37436, 65513, 78479, 131026, 156958, 262052, 313916, 549353, 1098706, 2197412, 3845471, 7690942, 14989489, 15381884, 26918297, 29978978, 53836594, 59957956, 104926423, 107673188, 209852846, 419705692, 734484961, 1468969922, 2937939844, 5141394727, 10282789454, 20565578908]

約数ペア:

[(1, 20565578908), (2, 10282789454), (4, 5141394727), (7, 2937939844), (14, 1468969922), (28, 734484961), (49, 419705692), (98, 209852846), (191, 107673188), (196, 104926423), (343, 59957956), (382, 53836594), (686, 29978978), (764, 26918297), (1337, 15381884), (1372, 14989489), (2674, 7690942), (5348, 3845471), (9359, 2197412), (18718, 1098706), (37436, 549353), (65513, 313916), (78479, 262052), (131026, 156958)]