180256000

素因数分解:

$2^8\times 5^3\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:205

約数の個数: 144

約数和(自身を含む): 462990528

約数和(自身を除く): 282734528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 64, 80, 86, 100, 125, 128, 131, 160, 172, 200, 215, 250, 256, 262, 320, 344, 400, 430, 500, 524, 640, 655, 688, 800, 860, 1000, 1048, 1075, 1280, 1310, 1376, 1600, 1720, 2000, 2096, 2150, 2620, 2752, 3200, 3275, 3440, 4000, 4192, 4300, 5240, 5375, 5504, 5633, 6400, 6550, 6880, 8000, 8384, 8600, 10480, 10750, 11008, 11266, 13100, 13760, 16000, 16375, 16768, 17200, 20960, 21500, 22532, 26200, 27520, 28165, 32000, 32750, 33536, 34400, 41920, 43000, 45064, 52400, 55040, 56330, 65500, 68800, 83840, 86000, 90128, 104800, 112660, 131000, 137600, 140825, 167680, 172000, 180256, 209600, 225320, 262000, 275200, 281650, 344000, 360512, 419200, 450640, 524000, 563300, 688000, 704125, 721024, 838400, 901280, 1048000, 1126600, 1376000, 1408250, 1442048, 1802560, 2096000, 2253200, 2816500, 3605120, 4192000, 4506400, 5633000, 7210240, 9012800, 11266000, 18025600, 22532000, 36051200, 45064000, 90128000, 180256000]

約数ペア:

[(1, 180256000), (2, 90128000), (4, 45064000), (5, 36051200), (8, 22532000), (10, 18025600), (16, 11266000), (20, 9012800), (25, 7210240), (32, 5633000), (40, 4506400), (43, 4192000), (50, 3605120), (64, 2816500), (80, 2253200), (86, 2096000), (100, 1802560), (125, 1442048), (128, 1408250), (131, 1376000), (160, 1126600), (172, 1048000), (200, 901280), (215, 838400), (250, 721024), (256, 704125), (262, 688000), (320, 563300), (344, 524000), (400, 450640), (430, 419200), (500, 360512), (524, 344000), (640, 281650), (655, 275200), (688, 262000), (800, 225320), (860, 209600), (1000, 180256), (1048, 172000), (1075, 167680), (1280, 140825), (1310, 137600), (1376, 131000), (1600, 112660), (1720, 104800), (2000, 90128), (2096, 86000), (2150, 83840), (2620, 68800), (2752, 65500), (3200, 56330), (3275, 55040), (3440, 52400), (4000, 45064), (4192, 43000), (4300, 41920), (5240, 34400), (5375, 33536), (5504, 32750), (5633, 32000), (6400, 28165), (6550, 27520), (6880, 26200), (8000, 22532), (8384, 21500), (8600, 20960), (10480, 17200), (10750, 16768), (11008, 16375), (11266, 16000), (13100, 13760)]