138918400

素因数分解:

$2^9\times 5^2\times {\mathrm{10853}}^1$

素因数の和:10881

約数の個数: 60

約数和(自身を含む): 344212902

約数和(自身を除く): 205294502

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1280, 1600, 2560, 3200, 6400, 10853, 12800, 21706, 43412, 54265, 86824, 108530, 173648, 217060, 271325, 347296, 434120, 542650, 694592, 868240, 1085300, 1389184, 1736480, 2170600, 2778368, 3472960, 4341200, 5556736, 6945920, 8682400, 13891840, 17364800, 27783680, 34729600, 69459200, 138918400]

約数ペア:

[(1, 138918400), (2, 69459200), (4, 34729600), (5, 27783680), (8, 17364800), (10, 13891840), (16, 8682400), (20, 6945920), (25, 5556736), (32, 4341200), (40, 3472960), (50, 2778368), (64, 2170600), (80, 1736480), (100, 1389184), (128, 1085300), (160, 868240), (200, 694592), (256, 542650), (320, 434120), (400, 347296), (512, 271325), (640, 217060), (800, 173648), (1280, 108530), (1600, 86824), (2560, 54265), (3200, 43412), (6400, 21706), (10853, 12800)]