84080000

素因数分解:

$2^7\times 5^4\times {\mathrm{1051}}^1$

素因数の和:1085

約数の個数: 80

約数和(自身を含む): 209511060

約数和(自身を除く): 125431060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 625, 640, 800, 1000, 1051, 1250, 1600, 2000, 2102, 2500, 3200, 4000, 4204, 5000, 5255, 8000, 8408, 10000, 10510, 16000, 16816, 20000, 21020, 26275, 33632, 40000, 42040, 52550, 67264, 80000, 84080, 105100, 131375, 134528, 168160, 210200, 262750, 336320, 420400, 525500, 656875, 672640, 840800, 1051000, 1313750, 1681600, 2102000, 2627500, 3363200, 4204000, 5255000, 8408000, 10510000, 16816000, 21020000, 42040000, 84080000]

約数ペア:

[(1, 84080000), (2, 42040000), (4, 21020000), (5, 16816000), (8, 10510000), (10, 8408000), (16, 5255000), (20, 4204000), (25, 3363200), (32, 2627500), (40, 2102000), (50, 1681600), (64, 1313750), (80, 1051000), (100, 840800), (125, 672640), (128, 656875), (160, 525500), (200, 420400), (250, 336320), (320, 262750), (400, 210200), (500, 168160), (625, 134528), (640, 131375), (800, 105100), (1000, 84080), (1051, 80000), (1250, 67264), (1600, 52550), (2000, 42040), (2102, 40000), (2500, 33632), (3200, 26275), (4000, 21020), (4204, 20000), (5000, 16816), (5255, 16000), (8000, 10510), (8408, 10000)]