220398080

素因数分解:

$2^9\times 5^1\times 7^3\times {\mathrm{251}}^1$

素因数の和:295

約数の個数: 160

約数和(自身を含む): 618710400

約数和(自身を除く): 398312320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 251, 256, 280, 320, 343, 392, 448, 490, 502, 512, 560, 640, 686, 784, 896, 980, 1004, 1120, 1255, 1280, 1372, 1568, 1715, 1757, 1792, 1960, 2008, 2240, 2510, 2560, 2744, 3136, 3430, 3514, 3584, 3920, 4016, 4480, 5020, 5488, 6272, 6860, 7028, 7840, 8032, 8785, 8960, 10040, 10976, 12299, 12544, 13720, 14056, 15680, 16064, 17570, 17920, 20080, 21952, 24598, 25088, 27440, 28112, 31360, 32128, 35140, 40160, 43904, 49196, 54880, 56224, 61495, 62720, 64256, 70280, 80320, 86093, 87808, 98392, 109760, 112448, 122990, 125440, 128512, 140560, 160640, 172186, 175616, 196784, 219520, 224896, 245980, 281120, 321280, 344372, 393568, 430465, 439040, 449792, 491960, 562240, 642560, 688744, 787136, 860930, 878080, 899584, 983920, 1124480, 1377488, 1574272, 1721860, 1967840, 2248960, 2754976, 3148544, 3443720, 3935680, 4497920, 5509952, 6297088, 6887440, 7871360, 11019904, 13774880, 15742720, 22039808, 27549760, 31485440, 44079616, 55099520, 110199040, 220398080]

約数ペア:

[(1, 220398080), (2, 110199040), (4, 55099520), (5, 44079616), (7, 31485440), (8, 27549760), (10, 22039808), (14, 15742720), (16, 13774880), (20, 11019904), (28, 7871360), (32, 6887440), (35, 6297088), (40, 5509952), (49, 4497920), (56, 3935680), (64, 3443720), (70, 3148544), (80, 2754976), (98, 2248960), (112, 1967840), (128, 1721860), (140, 1574272), (160, 1377488), (196, 1124480), (224, 983920), (245, 899584), (251, 878080), (256, 860930), (280, 787136), (320, 688744), (343, 642560), (392, 562240), (448, 491960), (490, 449792), (502, 439040), (512, 430465), (560, 393568), (640, 344372), (686, 321280), (784, 281120), (896, 245980), (980, 224896), (1004, 219520), (1120, 196784), (1255, 175616), (1280, 172186), (1372, 160640), (1568, 140560), (1715, 128512), (1757, 125440), (1792, 122990), (1960, 112448), (2008, 109760), (2240, 98392), (2510, 87808), (2560, 86093), (2744, 80320), (3136, 70280), (3430, 64256), (3514, 62720), (3584, 61495), (3920, 56224), (4016, 54880), (4480, 49196), (5020, 43904), (5488, 40160), (6272, 35140), (6860, 32128), (7028, 31360), (7840, 28112), (8032, 27440), (8785, 25088), (8960, 24598), (10040, 21952), (10976, 20080), (12299, 17920), (12544, 17570), (13720, 16064), (14056, 15680)]