20653000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1087}}^1$

素因数の和:1127

約数の個数: 64

約数和(自身を含む): 50918400

約数和(自身を除く): 30265400

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 1000, 1087, 1900, 2174, 2375, 3800, 4348, 4750, 5435, 8696, 9500, 10870, 19000, 20653, 21740, 27175, 41306, 43480, 54350, 82612, 103265, 108700, 135875, 165224, 206530, 217400, 271750, 413060, 516325, 543500, 826120, 1032650, 1087000, 2065300, 2581625, 4130600, 5163250, 10326500, 20653000]

約数ペア:

[(1, 20653000), (2, 10326500), (4, 5163250), (5, 4130600), (8, 2581625), (10, 2065300), (19, 1087000), (20, 1032650), (25, 826120), (38, 543500), (40, 516325), (50, 413060), (76, 271750), (95, 217400), (100, 206530), (125, 165224), (152, 135875), (190, 108700), (200, 103265), (250, 82612), (380, 54350), (475, 43480), (500, 41306), (760, 27175), (950, 21740), (1000, 20653), (1087, 19000), (1900, 10870), (2174, 9500), (2375, 8696), (3800, 5435), (4348, 4750)]