21152000

素因数分解:

$2^8\times 5^3\times {\mathrm{661}}^1$

素因数の和:692

約数の個数: 72

約数和(自身を含む): 52771992

約数和(自身を除く): 31619992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 640, 661, 800, 1000, 1280, 1322, 1600, 2000, 2644, 3200, 3305, 4000, 5288, 6400, 6610, 8000, 10576, 13220, 16000, 16525, 21152, 26440, 32000, 33050, 42304, 52880, 66100, 82625, 84608, 105760, 132200, 165250, 169216, 211520, 264400, 330500, 423040, 528800, 661000, 846080, 1057600, 1322000, 2115200, 2644000, 4230400, 5288000, 10576000, 21152000]

約数ペア:

[(1, 21152000), (2, 10576000), (4, 5288000), (5, 4230400), (8, 2644000), (10, 2115200), (16, 1322000), (20, 1057600), (25, 846080), (32, 661000), (40, 528800), (50, 423040), (64, 330500), (80, 264400), (100, 211520), (125, 169216), (128, 165250), (160, 132200), (200, 105760), (250, 84608), (256, 82625), (320, 66100), (400, 52880), (500, 42304), (640, 33050), (661, 32000), (800, 26440), (1000, 21152), (1280, 16525), (1322, 16000), (1600, 13220), (2000, 10576), (2644, 8000), (3200, 6610), (3305, 6400), (4000, 5288)]