20655460

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{3011}}^1$

素因数の和:3041

約数の個数: 48

約数和(自身を含む): 50601600

約数和(自身を除く): 29946140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3011, 3430, 6022, 6860, 12044, 15055, 21077, 30110, 42154, 60220, 84308, 105385, 147539, 210770, 295078, 421540, 590156, 737695, 1032773, 1475390, 2065546, 2950780, 4131092, 5163865, 10327730, 20655460]

約数ペア:

[(1, 20655460), (2, 10327730), (4, 5163865), (5, 4131092), (7, 2950780), (10, 2065546), (14, 1475390), (20, 1032773), (28, 737695), (35, 590156), (49, 421540), (70, 295078), (98, 210770), (140, 147539), (196, 105385), (245, 84308), (343, 60220), (490, 42154), (686, 30110), (980, 21077), (1372, 15055), (1715, 12044), (3011, 6860), (3430, 6022)]