643806720

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{27943}}^1$

素因数の和:27972

約数の個数: 120

約数和(自身を含む): 2229763536

約数和(自身を除く): 1585956816

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1536, 1920, 2304, 2560, 2880, 3840, 4608, 5760, 7680, 11520, 23040, 27943, 55886, 83829, 111772, 139715, 167658, 223544, 251487, 279430, 335316, 419145, 447088, 502974, 558860, 670632, 838290, 894176, 1005948, 1117720, 1257435, 1341264, 1676580, 1788352, 2011896, 2235440, 2514870, 2682528, 3353160, 3576704, 4023792, 4470880, 5029740, 5365056, 6706320, 7153408, 8047584, 8941760, 10059480, 10730112, 13412640, 14306816, 16095168, 17883520, 20118960, 21460224, 26825280, 32190336, 35767040, 40237920, 42920448, 53650560, 64380672, 71534080, 80475840, 107301120, 128761344, 160951680, 214602240, 321903360, 643806720]

約数ペア:

[(1, 643806720), (2, 321903360), (3, 214602240), (4, 160951680), (5, 128761344), (6, 107301120), (8, 80475840), (9, 71534080), (10, 64380672), (12, 53650560), (15, 42920448), (16, 40237920), (18, 35767040), (20, 32190336), (24, 26825280), (30, 21460224), (32, 20118960), (36, 17883520), (40, 16095168), (45, 14306816), (48, 13412640), (60, 10730112), (64, 10059480), (72, 8941760), (80, 8047584), (90, 7153408), (96, 6706320), (120, 5365056), (128, 5029740), (144, 4470880), (160, 4023792), (180, 3576704), (192, 3353160), (240, 2682528), (256, 2514870), (288, 2235440), (320, 2011896), (360, 1788352), (384, 1676580), (480, 1341264), (512, 1257435), (576, 1117720), (640, 1005948), (720, 894176), (768, 838290), (960, 670632), (1152, 558860), (1280, 502974), (1440, 447088), (1536, 419145), (1920, 335316), (2304, 279430), (2560, 251487), (2880, 223544), (3840, 167658), (4608, 139715), (5760, 111772), (7680, 83829), (11520, 55886), (23040, 27943)]