20960212

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{647}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 24762668

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 89, 91, 178, 182, 356, 364, 623, 647, 1157, 1246, 1294, 2314, 2492, 2588, 4529, 4628, 8099, 8411, 9058, 16198, 16822, 18116, 32396, 33644, 57583, 58877, 115166, 117754, 230332, 235508, 403081, 748579, 806162, 1497158, 1612324, 2994316, 5240053, 10480106, 20960212]

約数ペア:

[(1, 20960212), (2, 10480106), (4, 5240053), (7, 2994316), (13, 1612324), (14, 1497158), (26, 806162), (28, 748579), (52, 403081), (89, 235508), (91, 230332), (178, 117754), (182, 115166), (356, 58877), (364, 57583), (623, 33644), (647, 32396), (1157, 18116), (1246, 16822), (1294, 16198), (2314, 9058), (2492, 8411), (2588, 8099), (4529, 4628)]