21841920

素因数分解:

$2^{11}\times 3^3\times 5^1\times {\mathrm{79}}^1$

素因数の和:115

約数の個数: 192

約数和(自身を含む): 78624000

約数和(自身を除く): 56782080

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, 79, 80, 90, 96, 108, 120, 128, 135, 144, 158, 160, 180, 192, 216, 237, 240, 256, 270, 288, 316, 320, 360, 384, 395, 432, 474, 480, 512, 540, 576, 632, 640, 711, 720, 768, 790, 864, 948, 960, 1024, 1080, 1152, 1185, 1264, 1280, 1422, 1440, 1536, 1580, 1728, 1896, 1920, 2048, 2133, 2160, 2304, 2370, 2528, 2560, 2844, 2880, 3072, 3160, 3456, 3555, 3792, 3840, 4266, 4320, 4608, 4740, 5056, 5120, 5688, 5760, 6144, 6320, 6912, 7110, 7584, 7680, 8532, 8640, 9216, 9480, 10112, 10240, 10665, 11376, 11520, 12640, 13824, 14220, 15168, 15360, 17064, 17280, 18432, 18960, 20224, 21330, 22752, 23040, 25280, 27648, 28440, 30336, 30720, 34128, 34560, 37920, 40448, 42660, 45504, 46080, 50560, 55296, 56880, 60672, 68256, 69120, 75840, 80896, 85320, 91008, 92160, 101120, 113760, 121344, 136512, 138240, 151680, 161792, 170640, 182016, 202240, 227520, 242688, 273024, 276480, 303360, 341280, 364032, 404480, 455040, 485376, 546048, 606720, 682560, 728064, 808960, 910080, 1092096, 1213440, 1365120, 1456128, 1820160, 2184192, 2426880, 2730240, 3640320, 4368384, 5460480, 7280640, 10920960, 21841920]

約数ペア:

[(1, 21841920), (2, 10920960), (3, 7280640), (4, 5460480), (5, 4368384), (6, 3640320), (8, 2730240), (9, 2426880), (10, 2184192), (12, 1820160), (15, 1456128), (16, 1365120), (18, 1213440), (20, 1092096), (24, 910080), (27, 808960), (30, 728064), (32, 682560), (36, 606720), (40, 546048), (45, 485376), (48, 455040), (54, 404480), (60, 364032), (64, 341280), (72, 303360), (79, 276480), (80, 273024), (90, 242688), (96, 227520), (108, 202240), (120, 182016), (128, 170640), (135, 161792), (144, 151680), (158, 138240), (160, 136512), (180, 121344), (192, 113760), (216, 101120), (237, 92160), (240, 91008), (256, 85320), (270, 80896), (288, 75840), (316, 69120), (320, 68256), (360, 60672), (384, 56880), (395, 55296), (432, 50560), (474, 46080), (480, 45504), (512, 42660), (540, 40448), (576, 37920), (632, 34560), (640, 34128), (711, 30720), (720, 30336), (768, 28440), (790, 27648), (864, 25280), (948, 23040), (960, 22752), (1024, 21330), (1080, 20224), (1152, 18960), (1185, 18432), (1264, 17280), (1280, 17064), (1422, 15360), (1440, 15168), (1536, 14220), (1580, 13824), (1728, 12640), (1896, 11520), (1920, 11376), (2048, 10665), (2133, 10240), (2160, 10112), (2304, 9480), (2370, 9216), (2528, 8640), (2560, 8532), (2844, 7680), (2880, 7584), (3072, 7110), (3160, 6912), (3456, 6320), (3555, 6144), (3792, 5760), (3840, 5688), (4266, 5120), (4320, 5056), (4608, 4740)]