50720000

素因数分解:

$2^8\times 5^4\times {\mathrm{317}}^1$

素因数の和:353

約数の個数: 90

約数和(自身を含む): 126910938

約数和(自身を除く): 76190938

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 317, 320, 400, 500, 625, 634, 640, 800, 1000, 1250, 1268, 1280, 1585, 1600, 2000, 2500, 2536, 3170, 3200, 4000, 5000, 5072, 6340, 6400, 7925, 8000, 10000, 10144, 12680, 15850, 16000, 20000, 20288, 25360, 31700, 32000, 39625, 40000, 40576, 50720, 63400, 79250, 80000, 81152, 101440, 126800, 158500, 160000, 198125, 202880, 253600, 317000, 396250, 405760, 507200, 634000, 792500, 1014400, 1268000, 1585000, 2028800, 2536000, 3170000, 5072000, 6340000, 10144000, 12680000, 25360000, 50720000]

約数ペア:

[(1, 50720000), (2, 25360000), (4, 12680000), (5, 10144000), (8, 6340000), (10, 5072000), (16, 3170000), (20, 2536000), (25, 2028800), (32, 1585000), (40, 1268000), (50, 1014400), (64, 792500), (80, 634000), (100, 507200), (125, 405760), (128, 396250), (160, 317000), (200, 253600), (250, 202880), (256, 198125), (317, 160000), (320, 158500), (400, 126800), (500, 101440), (625, 81152), (634, 80000), (640, 79250), (800, 63400), (1000, 50720), (1250, 40576), (1268, 40000), (1280, 39625), (1585, 32000), (1600, 31700), (2000, 25360), (2500, 20288), (2536, 20000), (3170, 16000), (3200, 15850), (4000, 12680), (5000, 10144), (5072, 10000), (6340, 8000), (6400, 7925)]