18863180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2011}}^1$

素因数の和:2094

約数の個数: 48

約数和(自身を含む): 45970176

約数和(自身を除く): 27106996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2011, 2345, 4022, 4690, 8044, 9380, 10055, 14077, 20110, 28154, 40220, 56308, 70385, 134737, 140770, 269474, 281540, 538948, 673685, 943159, 1347370, 1886318, 2694740, 3772636, 4715795, 9431590, 18863180]

約数ペア:

[(1, 18863180), (2, 9431590), (4, 4715795), (5, 3772636), (7, 2694740), (10, 1886318), (14, 1347370), (20, 943159), (28, 673685), (35, 538948), (67, 281540), (70, 269474), (134, 140770), (140, 134737), (268, 70385), (335, 56308), (469, 40220), (670, 28154), (938, 20110), (1340, 14077), (1876, 10055), (2011, 9380), (2345, 8044), (4022, 4690)]