18420480

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:84

約数の個数: 288

約数和(自身を含む): 72112320

約数和(自身を除く): 53691840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 41, 45, 48, 52, 54, 60, 64, 65, 72, 78, 80, 82, 90, 96, 104, 108, 117, 120, 123, 128, 130, 135, 144, 156, 160, 164, 180, 192, 195, 205, 208, 216, 234, 240, 246, 256, 260, 270, 288, 312, 320, 328, 351, 360, 369, 384, 390, 410, 416, 432, 468, 480, 492, 520, 533, 540, 576, 585, 615, 624, 640, 656, 702, 720, 738, 768, 780, 820, 832, 864, 936, 960, 984, 1040, 1066, 1080, 1107, 1152, 1170, 1230, 1248, 1280, 1312, 1404, 1440, 1476, 1560, 1599, 1640, 1664, 1728, 1755, 1845, 1872, 1920, 1968, 2080, 2132, 2160, 2214, 2304, 2340, 2460, 2496, 2624, 2665, 2808, 2880, 2952, 3120, 3198, 3280, 3328, 3456, 3510, 3690, 3744, 3840, 3936, 4160, 4264, 4320, 4428, 4680, 4797, 4920, 4992, 5248, 5330, 5535, 5616, 5760, 5904, 6240, 6396, 6560, 6912, 7020, 7380, 7488, 7872, 7995, 8320, 8528, 8640, 8856, 9360, 9594, 9840, 9984, 10496, 10660, 11070, 11232, 11520, 11808, 12480, 12792, 13120, 14040, 14391, 14760, 14976, 15744, 15990, 16640, 17056, 17280, 17712, 18720, 19188, 19680, 21320, 22140, 22464, 23616, 23985, 24960, 25584, 26240, 28080, 28782, 29520, 29952, 31488, 31980, 34112, 34560, 35424, 37440, 38376, 39360, 42640, 44280, 44928, 47232, 47970, 49920, 51168, 52480, 56160, 57564, 59040, 63960, 68224, 70848, 71955, 74880, 76752, 78720, 85280, 88560, 89856, 94464, 95940, 102336, 112320, 115128, 118080, 127920, 136448, 141696, 143910, 149760, 153504, 157440, 170560, 177120, 191880, 204672, 224640, 230256, 236160, 255840, 283392, 287820, 307008, 341120, 354240, 383760, 409344, 449280, 460512, 472320, 511680, 575640, 614016, 682240, 708480, 767520, 921024, 1023360, 1151280, 1228032, 1416960, 1535040, 1842048, 2046720, 2302560, 3070080, 3684096, 4605120, 6140160, 9210240, 18420480]

約数ペア:

[(1, 18420480), (2, 9210240), (3, 6140160), (4, 4605120), (5, 3684096), (6, 3070080), (8, 2302560), (9, 2046720), (10, 1842048), (12, 1535040), (13, 1416960), (15, 1228032), (16, 1151280), (18, 1023360), (20, 921024), (24, 767520), (26, 708480), (27, 682240), (30, 614016), (32, 575640), (36, 511680), (39, 472320), (40, 460512), (41, 449280), (45, 409344), (48, 383760), (52, 354240), (54, 341120), (60, 307008), (64, 287820), (65, 283392), (72, 255840), (78, 236160), (80, 230256), (82, 224640), (90, 204672), (96, 191880), (104, 177120), (108, 170560), (117, 157440), (120, 153504), (123, 149760), (128, 143910), (130, 141696), (135, 136448), (144, 127920), (156, 118080), (160, 115128), (164, 112320), (180, 102336), (192, 95940), (195, 94464), (205, 89856), (208, 88560), (216, 85280), (234, 78720), (240, 76752), (246, 74880), (256, 71955), (260, 70848), (270, 68224), (288, 63960), (312, 59040), (320, 57564), (328, 56160), (351, 52480), (360, 51168), (369, 49920), (384, 47970), (390, 47232), (410, 44928), (416, 44280), (432, 42640), (468, 39360), (480, 38376), (492, 37440), (520, 35424), (533, 34560), (540, 34112), (576, 31980), (585, 31488), (615, 29952), (624, 29520), (640, 28782), (656, 28080), (702, 26240), (720, 25584), (738, 24960), (768, 23985), (780, 23616), (820, 22464), (832, 22140), (864, 21320), (936, 19680), (960, 19188), (984, 18720), (1040, 17712), (1066, 17280), (1080, 17056), (1107, 16640), (1152, 15990), (1170, 15744), (1230, 14976), (1248, 14760), (1280, 14391), (1312, 14040), (1404, 13120), (1440, 12792), (1476, 12480), (1560, 11808), (1599, 11520), (1640, 11232), (1664, 11070), (1728, 10660), (1755, 10496), (1845, 9984), (1872, 9840), (1920, 9594), (1968, 9360), (2080, 8856), (2132, 8640), (2160, 8528), (2214, 8320), (2304, 7995), (2340, 7872), (2460, 7488), (2496, 7380), (2624, 7020), (2665, 6912), (2808, 6560), (2880, 6396), (2952, 6240), (3120, 5904), (3198, 5760), (3280, 5616), (3328, 5535), (3456, 5330), (3510, 5248), (3690, 4992), (3744, 4920), (3840, 4797), (3936, 4680), (4160, 4428), (4264, 4320)]