20131531768

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{2153}}^1\times {\mathrm{10723}}^1$

素因数の和:12991

約数の個数: 32

約数和(自身を含む): 38114168400

約数和(自身を除く): 17982636632

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 2153, 4306, 8612, 10723, 17224, 21446, 42892, 85784, 234677, 469354, 938708, 1168807, 1877416, 2337614, 4675228, 9350456, 23086619, 46173238, 92346476, 184692952, 2516441471, 5032882942, 10065765884, 20131531768]

約数ペア:

[(1, 20131531768), (2, 10065765884), (4, 5032882942), (8, 2516441471), (109, 184692952), (218, 92346476), (436, 46173238), (872, 23086619), (2153, 9350456), (4306, 4675228), (8612, 2337614), (10723, 1877416), (17224, 1168807), (21446, 938708), (42892, 469354), (85784, 234677)]