78721920

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:277

約数の個数: 192

約数和(自身を含む): 276868800

約数和(自身を除く): 198146880

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, 79, 80, 90, 96, 120, 128, 144, 158, 160, 173, 180, 192, 237, 240, 288, 316, 320, 346, 360, 384, 395, 474, 480, 519, 576, 632, 640, 692, 711, 720, 790, 865, 948, 960, 1038, 1152, 1185, 1264, 1384, 1422, 1440, 1557, 1580, 1730, 1896, 1920, 2076, 2370, 2528, 2595, 2768, 2844, 2880, 3114, 3160, 3460, 3555, 3792, 4152, 4740, 5056, 5190, 5536, 5688, 5760, 6228, 6320, 6920, 7110, 7584, 7785, 8304, 9480, 10112, 10380, 11072, 11376, 12456, 12640, 13667, 13840, 14220, 15168, 15570, 16608, 18960, 20760, 22144, 22752, 24912, 25280, 27334, 27680, 28440, 30336, 31140, 33216, 37920, 41001, 41520, 45504, 49824, 50560, 54668, 55360, 56880, 62280, 66432, 68335, 75840, 82002, 83040, 91008, 99648, 109336, 110720, 113760, 123003, 124560, 136670, 151680, 164004, 166080, 199296, 205005, 218672, 227520, 246006, 249120, 273340, 328008, 332160, 410010, 437344, 455040, 492012, 498240, 546680, 615015, 656016, 820020, 874688, 984024, 996480, 1093360, 1230030, 1312032, 1640040, 1749376, 1968048, 2186720, 2460060, 2624064, 3280080, 3936096, 4373440, 4920120, 5248128, 6560160, 7872192, 8746880, 9840240, 13120320, 15744384, 19680480, 26240640, 39360960, 78721920]

約数ペア:

[(1, 78721920), (2, 39360960), (3, 26240640), (4, 19680480), (5, 15744384), (6, 13120320), (8, 9840240), (9, 8746880), (10, 7872192), (12, 6560160), (15, 5248128), (16, 4920120), (18, 4373440), (20, 3936096), (24, 3280080), (30, 2624064), (32, 2460060), (36, 2186720), (40, 1968048), (45, 1749376), (48, 1640040), (60, 1312032), (64, 1230030), (72, 1093360), (79, 996480), (80, 984024), (90, 874688), (96, 820020), (120, 656016), (128, 615015), (144, 546680), (158, 498240), (160, 492012), (173, 455040), (180, 437344), (192, 410010), (237, 332160), (240, 328008), (288, 273340), (316, 249120), (320, 246006), (346, 227520), (360, 218672), (384, 205005), (395, 199296), (474, 166080), (480, 164004), (519, 151680), (576, 136670), (632, 124560), (640, 123003), (692, 113760), (711, 110720), (720, 109336), (790, 99648), (865, 91008), (948, 83040), (960, 82002), (1038, 75840), (1152, 68335), (1185, 66432), (1264, 62280), (1384, 56880), (1422, 55360), (1440, 54668), (1557, 50560), (1580, 49824), (1730, 45504), (1896, 41520), (1920, 41001), (2076, 37920), (2370, 33216), (2528, 31140), (2595, 30336), (2768, 28440), (2844, 27680), (2880, 27334), (3114, 25280), (3160, 24912), (3460, 22752), (3555, 22144), (3792, 20760), (4152, 18960), (4740, 16608), (5056, 15570), (5190, 15168), (5536, 14220), (5688, 13840), (5760, 13667), (6228, 12640), (6320, 12456), (6920, 11376), (7110, 11072), (7584, 10380), (7785, 10112), (8304, 9480)]