129728000

素因数分解:

$2^9\times 5^3\times {\mathrm{2027}}^1$

素因数の和:2060

約数の個数: 80

約数和(自身を含む): 323644464

約数和(自身を除く): 193916464

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, 2027, 2560, 3200, 4000, 4054, 6400, 8000, 8108, 10135, 12800, 16000, 16216, 20270, 32000, 32432, 40540, 50675, 64000, 64864, 81080, 101350, 129728, 162160, 202700, 253375, 259456, 324320, 405400, 506750, 518912, 648640, 810800, 1013500, 1037824, 1297280, 1621600, 2027000, 2594560, 3243200, 4054000, 5189120, 6486400, 8108000, 12972800, 16216000, 25945600, 32432000, 64864000, 129728000]

約数ペア:

[(1, 129728000), (2, 64864000), (4, 32432000), (5, 25945600), (8, 16216000), (10, 12972800), (16, 8108000), (20, 6486400), (25, 5189120), (32, 4054000), (40, 3243200), (50, 2594560), (64, 2027000), (80, 1621600), (100, 1297280), (125, 1037824), (128, 1013500), (160, 810800), (200, 648640), (250, 518912), (256, 506750), (320, 405400), (400, 324320), (500, 259456), (512, 253375), (640, 202700), (800, 162160), (1000, 129728), (1280, 101350), (1600, 81080), (2000, 64864), (2027, 64000), (2560, 50675), (3200, 40540), (4000, 32432), (4054, 32000), (6400, 20270), (8000, 16216), (8108, 16000), (10135, 12800)]