398753280

素因数分解:

$2^9\times 3^5\times 5^1\times {\mathrm{641}}^1$

素因数の和:679

約数の個数: 240

約数和(自身を含む): 1434376944

約数和(自身を除く): 1035623664

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 512, 540, 576, 640, 641, 648, 720, 768, 810, 864, 960, 972, 1080, 1152, 1215, 1280, 1282, 1296, 1440, 1536, 1620, 1728, 1920, 1923, 1944, 2160, 2304, 2430, 2560, 2564, 2592, 2880, 3205, 3240, 3456, 3840, 3846, 3888, 4320, 4608, 4860, 5128, 5184, 5760, 5769, 6410, 6480, 6912, 7680, 7692, 7776, 8640, 9615, 9720, 10256, 10368, 11520, 11538, 12820, 12960, 13824, 15384, 15552, 17280, 17307, 19230, 19440, 20512, 20736, 23040, 23076, 25640, 25920, 28845, 30768, 31104, 34560, 34614, 38460, 38880, 41024, 41472, 46152, 51280, 51840, 51921, 57690, 61536, 62208, 69120, 69228, 76920, 77760, 82048, 86535, 92304, 102560, 103680, 103842, 115380, 123072, 124416, 138456, 153840, 155520, 155763, 164096, 173070, 184608, 205120, 207360, 207684, 230760, 246144, 259605, 276912, 307680, 311040, 311526, 328192, 346140, 369216, 410240, 415368, 461520, 492288, 519210, 553824, 615360, 622080, 623052, 692280, 738432, 778815, 820480, 830736, 923040, 984576, 1038420, 1107648, 1230720, 1246104, 1384560, 1476864, 1557630, 1640960, 1661472, 1846080, 2076840, 2215296, 2461440, 2492208, 2769120, 2953728, 3115260, 3322944, 3692160, 4153680, 4430592, 4922880, 4984416, 5538240, 6230520, 6645888, 7384320, 8307360, 8861184, 9968832, 11076480, 12461040, 13291776, 14768640, 16614720, 19937664, 22152960, 24922080, 26583552, 33229440, 39875328, 44305920, 49844160, 66458880, 79750656, 99688320, 132917760, 199376640, 398753280]

約数ペア:

[(1, 398753280), (2, 199376640), (3, 132917760), (4, 99688320), (5, 79750656), (6, 66458880), (8, 49844160), (9, 44305920), (10, 39875328), (12, 33229440), (15, 26583552), (16, 24922080), (18, 22152960), (20, 19937664), (24, 16614720), (27, 14768640), (30, 13291776), (32, 12461040), (36, 11076480), (40, 9968832), (45, 8861184), (48, 8307360), (54, 7384320), (60, 6645888), (64, 6230520), (72, 5538240), (80, 4984416), (81, 4922880), (90, 4430592), (96, 4153680), (108, 3692160), (120, 3322944), (128, 3115260), (135, 2953728), (144, 2769120), (160, 2492208), (162, 2461440), (180, 2215296), (192, 2076840), (216, 1846080), (240, 1661472), (243, 1640960), (256, 1557630), (270, 1476864), (288, 1384560), (320, 1246104), (324, 1230720), (360, 1107648), (384, 1038420), (405, 984576), (432, 923040), (480, 830736), (486, 820480), (512, 778815), (540, 738432), (576, 692280), (640, 623052), (641, 622080), (648, 615360), (720, 553824), (768, 519210), (810, 492288), (864, 461520), (960, 415368), (972, 410240), (1080, 369216), (1152, 346140), (1215, 328192), (1280, 311526), (1282, 311040), (1296, 307680), (1440, 276912), (1536, 259605), (1620, 246144), (1728, 230760), (1920, 207684), (1923, 207360), (1944, 205120), (2160, 184608), (2304, 173070), (2430, 164096), (2560, 155763), (2564, 155520), (2592, 153840), (2880, 138456), (3205, 124416), (3240, 123072), (3456, 115380), (3840, 103842), (3846, 103680), (3888, 102560), (4320, 92304), (4608, 86535), (4860, 82048), (5128, 77760), (5184, 76920), (5760, 69228), (5769, 69120), (6410, 62208), (6480, 61536), (6912, 57690), (7680, 51921), (7692, 51840), (7776, 51280), (8640, 46152), (9615, 41472), (9720, 41024), (10256, 38880), (10368, 38460), (11520, 34614), (11538, 34560), (12820, 31104), (12960, 30768), (13824, 28845), (15384, 25920), (15552, 25640), (17280, 23076), (17307, 23040), (19230, 20736), (19440, 20512)]