128704000

素因数分解:

$2^9\times 5^3\times {\mathrm{2011}}^1$

素因数の和:2044

約数の個数: 80

約数和(自身を含む): 321091056

約数和(自身を除く): 192387056

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, 512, 640, 800, 1000, 1280, 1600, 2000, 2011, 2560, 3200, 4000, 4022, 6400, 8000, 8044, 10055, 12800, 16000, 16088, 20110, 32000, 32176, 40220, 50275, 64000, 64352, 80440, 100550, 128704, 160880, 201100, 251375, 257408, 321760, 402200, 502750, 514816, 643520, 804400, 1005500, 1029632, 1287040, 1608800, 2011000, 2574080, 3217600, 4022000, 5148160, 6435200, 8044000, 12870400, 16088000, 25740800, 32176000, 64352000, 128704000]

約数ペア:

[(1, 128704000), (2, 64352000), (4, 32176000), (5, 25740800), (8, 16088000), (10, 12870400), (16, 8044000), (20, 6435200), (25, 5148160), (32, 4022000), (40, 3217600), (50, 2574080), (64, 2011000), (80, 1608800), (100, 1287040), (125, 1029632), (128, 1005500), (160, 804400), (200, 643520), (250, 514816), (256, 502750), (320, 402200), (400, 321760), (500, 257408), (512, 251375), (640, 201100), (800, 160880), (1000, 128704), (1280, 100550), (1600, 80440), (2000, 64352), (2011, 64000), (2560, 50275), (3200, 40220), (4000, 32176), (4022, 32000), (6400, 20110), (8000, 16088), (8044, 16000), (10055, 12800)]