398049280

素因数分解:

$2^{14}\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:189

約数の個数: 120

約数和(自身を含む): 986155632

約数和(自身を除く): 588106352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 113, 128, 160, 172, 215, 226, 256, 320, 344, 430, 452, 512, 565, 640, 688, 860, 904, 1024, 1130, 1280, 1376, 1720, 1808, 2048, 2260, 2560, 2752, 3440, 3616, 4096, 4520, 4859, 5120, 5504, 6880, 7232, 8192, 9040, 9718, 10240, 11008, 13760, 14464, 16384, 18080, 19436, 20480, 22016, 24295, 27520, 28928, 36160, 38872, 40960, 44032, 48590, 55040, 57856, 72320, 77744, 81920, 88064, 97180, 110080, 115712, 144640, 155488, 176128, 194360, 220160, 231424, 289280, 310976, 352256, 388720, 440320, 462848, 578560, 621952, 704512, 777440, 880640, 925696, 1157120, 1243904, 1554880, 1761280, 1851392, 2314240, 2487808, 3109760, 3522560, 4628480, 4975616, 6219520, 9256960, 9951232, 12439040, 19902464, 24878080, 39804928, 49756160, 79609856, 99512320, 199024640, 398049280]

約数ペア:

[(1, 398049280), (2, 199024640), (4, 99512320), (5, 79609856), (8, 49756160), (10, 39804928), (16, 24878080), (20, 19902464), (32, 12439040), (40, 9951232), (43, 9256960), (64, 6219520), (80, 4975616), (86, 4628480), (113, 3522560), (128, 3109760), (160, 2487808), (172, 2314240), (215, 1851392), (226, 1761280), (256, 1554880), (320, 1243904), (344, 1157120), (430, 925696), (452, 880640), (512, 777440), (565, 704512), (640, 621952), (688, 578560), (860, 462848), (904, 440320), (1024, 388720), (1130, 352256), (1280, 310976), (1376, 289280), (1720, 231424), (1808, 220160), (2048, 194360), (2260, 176128), (2560, 155488), (2752, 144640), (3440, 115712), (3616, 110080), (4096, 97180), (4520, 88064), (4859, 81920), (5120, 77744), (5504, 72320), (6880, 57856), (7232, 55040), (8192, 48590), (9040, 44032), (9718, 40960), (10240, 38872), (11008, 36160), (13760, 28928), (14464, 27520), (16384, 24295), (18080, 22016), (19436, 20480)]