280891520

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{53}}^1$

素因数の和:112

約数の個数: 288

約数和(自身を含む): 861809220

約数和(自身を除く): 580917700

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 53, 56, 64, 65, 70, 80, 91, 98, 104, 106, 112, 128, 130, 140, 160, 169, 182, 196, 208, 212, 224, 245, 260, 265, 280, 320, 338, 364, 371, 392, 416, 424, 448, 455, 490, 520, 530, 560, 637, 640, 676, 689, 728, 742, 784, 832, 845, 848, 896, 910, 980, 1040, 1060, 1120, 1183, 1274, 1352, 1378, 1456, 1484, 1568, 1664, 1690, 1696, 1820, 1855, 1960, 2080, 2120, 2240, 2366, 2548, 2597, 2704, 2756, 2912, 2968, 3136, 3185, 3380, 3392, 3445, 3640, 3710, 3920, 4160, 4240, 4480, 4732, 4823, 5096, 5194, 5408, 5512, 5824, 5915, 5936, 6272, 6370, 6760, 6784, 6890, 7280, 7420, 7840, 8281, 8320, 8480, 8957, 9464, 9646, 10192, 10388, 10816, 11024, 11648, 11830, 11872, 12740, 12985, 13520, 13780, 14560, 14840, 15680, 16562, 16960, 17914, 18928, 19292, 20384, 20776, 21632, 22048, 23660, 23744, 24115, 25480, 25970, 27040, 27560, 29120, 29680, 31360, 33124, 33761, 33920, 35828, 37856, 38584, 40768, 41405, 41552, 44096, 44785, 47320, 47488, 48230, 50960, 51940, 54080, 55120, 58240, 59360, 62699, 66248, 67522, 71656, 75712, 77168, 81536, 82810, 83104, 88192, 89570, 94640, 96460, 101920, 103880, 108160, 110240, 118720, 125398, 132496, 135044, 143312, 151424, 154336, 165620, 166208, 168805, 179140, 189280, 192920, 203840, 207760, 220480, 237440, 250796, 264992, 270088, 286624, 308672, 313495, 331240, 332416, 337610, 358280, 378560, 385840, 407680, 415520, 438893, 440960, 501592, 529984, 540176, 573248, 617344, 626990, 662480, 675220, 716560, 757120, 771680, 831040, 877786, 1003184, 1059968, 1080352, 1146496, 1253980, 1324960, 1350440, 1433120, 1543360, 1662080, 1755572, 2006368, 2160704, 2194465, 2507960, 2649920, 2700880, 2866240, 3086720, 3511144, 4012736, 4321408, 4388930, 5015920, 5299840, 5401760, 5732480, 7022288, 8025472, 8777860, 10031840, 10803520, 14044576, 17555720, 20063680, 21607040, 28089152, 35111440, 40127360, 56178304, 70222880, 140445760, 280891520]

約数ペア:

[(1, 280891520), (2, 140445760), (4, 70222880), (5, 56178304), (7, 40127360), (8, 35111440), (10, 28089152), (13, 21607040), (14, 20063680), (16, 17555720), (20, 14044576), (26, 10803520), (28, 10031840), (32, 8777860), (35, 8025472), (40, 7022288), (49, 5732480), (52, 5401760), (53, 5299840), (56, 5015920), (64, 4388930), (65, 4321408), (70, 4012736), (80, 3511144), (91, 3086720), (98, 2866240), (104, 2700880), (106, 2649920), (112, 2507960), (128, 2194465), (130, 2160704), (140, 2006368), (160, 1755572), (169, 1662080), (182, 1543360), (196, 1433120), (208, 1350440), (212, 1324960), (224, 1253980), (245, 1146496), (260, 1080352), (265, 1059968), (280, 1003184), (320, 877786), (338, 831040), (364, 771680), (371, 757120), (392, 716560), (416, 675220), (424, 662480), (448, 626990), (455, 617344), (490, 573248), (520, 540176), (530, 529984), (560, 501592), (637, 440960), (640, 438893), (676, 415520), (689, 407680), (728, 385840), (742, 378560), (784, 358280), (832, 337610), (845, 332416), (848, 331240), (896, 313495), (910, 308672), (980, 286624), (1040, 270088), (1060, 264992), (1120, 250796), (1183, 237440), (1274, 220480), (1352, 207760), (1378, 203840), (1456, 192920), (1484, 189280), (1568, 179140), (1664, 168805), (1690, 166208), (1696, 165620), (1820, 154336), (1855, 151424), (1960, 143312), (2080, 135044), (2120, 132496), (2240, 125398), (2366, 118720), (2548, 110240), (2597, 108160), (2704, 103880), (2756, 101920), (2912, 96460), (2968, 94640), (3136, 89570), (3185, 88192), (3380, 83104), (3392, 82810), (3445, 81536), (3640, 77168), (3710, 75712), (3920, 71656), (4160, 67522), (4240, 66248), (4480, 62699), (4732, 59360), (4823, 58240), (5096, 55120), (5194, 54080), (5408, 51940), (5512, 50960), (5824, 48230), (5915, 47488), (5936, 47320), (6272, 44785), (6370, 44096), (6760, 41552), (6784, 41405), (6890, 40768), (7280, 38584), (7420, 37856), (7840, 35828), (8281, 33920), (8320, 33761), (8480, 33124), (8957, 31360), (9464, 29680), (9646, 29120), (10192, 27560), (10388, 27040), (10816, 25970), (11024, 25480), (11648, 24115), (11830, 23744), (11872, 23660), (12740, 22048), (12985, 21632), (13520, 20776), (13780, 20384), (14560, 19292), (14840, 18928), (15680, 17914), (16562, 16960)]