280400640

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:215

約数の個数: 288

約数和(自身を含む): 995150016

約数和(自身を除く): 714749376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 41, 48, 52, 60, 64, 65, 78, 80, 82, 96, 104, 120, 123, 128, 130, 137, 156, 160, 164, 192, 195, 205, 208, 240, 246, 256, 260, 274, 312, 320, 328, 384, 390, 410, 411, 416, 480, 492, 520, 533, 548, 615, 624, 640, 656, 685, 768, 780, 820, 822, 832, 960, 984, 1040, 1066, 1096, 1230, 1248, 1280, 1312, 1370, 1560, 1599, 1640, 1644, 1664, 1781, 1920, 1968, 2055, 2080, 2132, 2192, 2460, 2496, 2624, 2665, 2740, 3120, 3198, 3280, 3288, 3328, 3562, 3840, 3936, 4110, 4160, 4264, 4384, 4920, 4992, 5248, 5330, 5343, 5480, 5617, 6240, 6396, 6560, 6576, 7124, 7872, 7995, 8220, 8320, 8528, 8768, 8905, 9840, 9984, 10496, 10660, 10686, 10960, 11234, 12480, 12792, 13120, 13152, 14248, 15744, 15990, 16440, 16640, 16851, 17056, 17536, 17810, 19680, 21320, 21372, 21920, 22468, 24960, 25584, 26240, 26304, 26715, 28085, 28496, 31488, 31980, 32880, 33702, 34112, 35072, 35620, 39360, 42640, 42744, 43840, 44936, 49920, 51168, 52480, 52608, 53430, 56170, 56992, 63960, 65760, 67404, 68224, 71240, 73021, 78720, 84255, 85280, 85488, 87680, 89872, 102336, 105216, 106860, 112340, 113984, 127920, 131520, 134808, 136448, 142480, 146042, 157440, 168510, 170560, 170976, 175360, 179744, 204672, 213720, 219063, 224680, 227968, 255840, 263040, 269616, 284960, 292084, 337020, 341120, 341952, 359488, 365105, 409344, 427440, 438126, 449360, 455936, 511680, 526080, 539232, 569920, 584168, 674040, 682240, 683904, 718976, 730210, 854880, 876252, 898720, 1023360, 1078464, 1095315, 1139840, 1168336, 1348080, 1367808, 1437952, 1460420, 1709760, 1752504, 1797440, 2046720, 2156928, 2190630, 2279680, 2336672, 2696160, 2920840, 3419520, 3505008, 3594880, 4313856, 4381260, 4673344, 5392320, 5841680, 6839040, 7010016, 7189760, 8762520, 9346688, 10784640, 11683360, 14020032, 17525040, 18693376, 21569280, 23366720, 28040064, 35050080, 46733440, 56080128, 70100160, 93466880, 140200320, 280400640]

約数ペア:

[(1, 280400640), (2, 140200320), (3, 93466880), (4, 70100160), (5, 56080128), (6, 46733440), (8, 35050080), (10, 28040064), (12, 23366720), (13, 21569280), (15, 18693376), (16, 17525040), (20, 14020032), (24, 11683360), (26, 10784640), (30, 9346688), (32, 8762520), (39, 7189760), (40, 7010016), (41, 6839040), (48, 5841680), (52, 5392320), (60, 4673344), (64, 4381260), (65, 4313856), (78, 3594880), (80, 3505008), (82, 3419520), (96, 2920840), (104, 2696160), (120, 2336672), (123, 2279680), (128, 2190630), (130, 2156928), (137, 2046720), (156, 1797440), (160, 1752504), (164, 1709760), (192, 1460420), (195, 1437952), (205, 1367808), (208, 1348080), (240, 1168336), (246, 1139840), (256, 1095315), (260, 1078464), (274, 1023360), (312, 898720), (320, 876252), (328, 854880), (384, 730210), (390, 718976), (410, 683904), (411, 682240), (416, 674040), (480, 584168), (492, 569920), (520, 539232), (533, 526080), (548, 511680), (615, 455936), (624, 449360), (640, 438126), (656, 427440), (685, 409344), (768, 365105), (780, 359488), (820, 341952), (822, 341120), (832, 337020), (960, 292084), (984, 284960), (1040, 269616), (1066, 263040), (1096, 255840), (1230, 227968), (1248, 224680), (1280, 219063), (1312, 213720), (1370, 204672), (1560, 179744), (1599, 175360), (1640, 170976), (1644, 170560), (1664, 168510), (1781, 157440), (1920, 146042), (1968, 142480), (2055, 136448), (2080, 134808), (2132, 131520), (2192, 127920), (2460, 113984), (2496, 112340), (2624, 106860), (2665, 105216), (2740, 102336), (3120, 89872), (3198, 87680), (3280, 85488), (3288, 85280), (3328, 84255), (3562, 78720), (3840, 73021), (3936, 71240), (4110, 68224), (4160, 67404), (4264, 65760), (4384, 63960), (4920, 56992), (4992, 56170), (5248, 53430), (5330, 52608), (5343, 52480), (5480, 51168), (5617, 49920), (6240, 44936), (6396, 43840), (6560, 42744), (6576, 42640), (7124, 39360), (7872, 35620), (7995, 35072), (8220, 34112), (8320, 33702), (8528, 32880), (8768, 31980), (8905, 31488), (9840, 28496), (9984, 28085), (10496, 26715), (10660, 26304), (10686, 26240), (10960, 25584), (11234, 24960), (12480, 22468), (12792, 21920), (13120, 21372), (13152, 21320), (14248, 19680), (15744, 17810), (15990, 17536), (16440, 17056), (16640, 16851)]