19932680

素因数分解:

$2^3\times 5^1\times {\mathrm{547}}^1\times {\mathrm{911}}^1$

素因数の和:1469

約数の個数: 32

約数和(自身を含む): 44979840

約数和(自身を除く): 25047160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547, 911, 1094, 1822, 2188, 2735, 3644, 4376, 4555, 5470, 7288, 9110, 10940, 18220, 21880, 36440, 498317, 996634, 1993268, 2491585, 3986536, 4983170, 9966340, 19932680]

約数ペア:

[(1, 19932680), (2, 9966340), (4, 4983170), (5, 3986536), (8, 2491585), (10, 1993268), (20, 996634), (40, 498317), (547, 36440), (911, 21880), (1094, 18220), (1822, 10940), (2188, 9110), (2735, 7288), (3644, 5470), (4376, 4555)]