90128000

素因数分解:

$2^7\times 5^3\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 231042240

約数和(自身を除く): 140914240

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, 262, 320, 344, 400, 430, 500, 524, 640, 655, 688, 800, 860, 1000, 1048, 1075, 1310, 1376, 1600, 1720, 2000, 2096, 2150, 2620, 2752, 3200, 3275, 3440, 4000, 4192, 4300, 5240, 5375, 5504, 5633, 6550, 6880, 8000, 8384, 8600, 10480, 10750, 11266, 13100, 13760, 16000, 16375, 16768, 17200, 20960, 21500, 22532, 26200, 27520, 28165, 32750, 34400, 41920, 43000, 45064, 52400, 56330, 65500, 68800, 83840, 86000, 90128, 104800, 112660, 131000, 137600, 140825, 172000, 180256, 209600, 225320, 262000, 281650, 344000, 360512, 419200, 450640, 524000, 563300, 688000, 704125, 721024, 901280, 1048000, 1126600, 1408250, 1802560, 2096000, 2253200, 2816500, 3605120, 4506400, 5633000, 9012800, 11266000, 18025600, 22532000, 45064000, 90128000]

約数ペア:

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