281428560

素因数分解:

$2^4\times 3^3\times 5^1\times 7^2\times {\mathrm{2659}}^1$

素因数の和:2695

約数の個数: 240

約数和(自身を含む): 1128052800

約数和(自身を除く): 846624240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 168, 180, 189, 196, 210, 216, 240, 245, 252, 270, 280, 294, 315, 336, 360, 378, 392, 420, 432, 441, 490, 504, 540, 560, 588, 630, 720, 735, 756, 784, 840, 882, 945, 980, 1008, 1080, 1176, 1260, 1323, 1470, 1512, 1680, 1764, 1890, 1960, 2160, 2205, 2352, 2520, 2646, 2659, 2940, 3024, 3528, 3780, 3920, 4410, 5040, 5292, 5318, 5880, 6615, 7056, 7560, 7977, 8820, 10584, 10636, 11760, 13230, 13295, 15120, 15954, 17640, 18613, 21168, 21272, 23931, 26460, 26590, 31908, 35280, 37226, 39885, 42544, 47862, 52920, 53180, 55839, 63816, 71793, 74452, 79770, 93065, 95724, 105840, 106360, 111678, 119655, 127632, 130291, 143586, 148904, 159540, 167517, 186130, 191448, 212720, 223356, 239310, 260582, 279195, 287172, 297808, 319080, 335034, 358965, 372260, 382896, 390873, 446712, 478620, 502551, 521164, 558390, 574344, 638160, 651455, 670068, 717930, 744520, 781746, 837585, 893424, 957240, 1005102, 1042328, 1116780, 1148688, 1172619, 1302910, 1340136, 1435860, 1489040, 1563492, 1675170, 1914480, 1954365, 2010204, 2084656, 2233560, 2345238, 2512755, 2605820, 2680272, 2871720, 3126984, 3350340, 3517857, 3908730, 4020408, 4467120, 4690476, 5025510, 5211640, 5743440, 5863095, 6253968, 6700680, 7035714, 7817460, 8040816, 9380952, 10051020, 10423280, 11726190, 13401360, 14071428, 15634920, 17589285, 18761904, 20102040, 23452380, 28142856, 31269840, 35178570, 40204080, 46904760, 56285712, 70357140, 93809520, 140714280, 281428560]

約数ペア:

[(1, 281428560), (2, 140714280), (3, 93809520), (4, 70357140), (5, 56285712), (6, 46904760), (7, 40204080), (8, 35178570), (9, 31269840), (10, 28142856), (12, 23452380), (14, 20102040), (15, 18761904), (16, 17589285), (18, 15634920), (20, 14071428), (21, 13401360), (24, 11726190), (27, 10423280), (28, 10051020), (30, 9380952), (35, 8040816), (36, 7817460), (40, 7035714), (42, 6700680), (45, 6253968), (48, 5863095), (49, 5743440), (54, 5211640), (56, 5025510), (60, 4690476), (63, 4467120), (70, 4020408), (72, 3908730), (80, 3517857), (84, 3350340), (90, 3126984), (98, 2871720), (105, 2680272), (108, 2605820), (112, 2512755), (120, 2345238), (126, 2233560), (135, 2084656), (140, 2010204), (144, 1954365), (147, 1914480), (168, 1675170), (180, 1563492), (189, 1489040), (196, 1435860), (210, 1340136), (216, 1302910), (240, 1172619), (245, 1148688), (252, 1116780), (270, 1042328), (280, 1005102), (294, 957240), (315, 893424), (336, 837585), (360, 781746), (378, 744520), (392, 717930), (420, 670068), (432, 651455), (441, 638160), (490, 574344), (504, 558390), (540, 521164), (560, 502551), (588, 478620), (630, 446712), (720, 390873), (735, 382896), (756, 372260), (784, 358965), (840, 335034), (882, 319080), (945, 297808), (980, 287172), (1008, 279195), (1080, 260582), (1176, 239310), (1260, 223356), (1323, 212720), (1470, 191448), (1512, 186130), (1680, 167517), (1764, 159540), (1890, 148904), (1960, 143586), (2160, 130291), (2205, 127632), (2352, 119655), (2520, 111678), (2646, 106360), (2659, 105840), (2940, 95724), (3024, 93065), (3528, 79770), (3780, 74452), (3920, 71793), (4410, 63816), (5040, 55839), (5292, 53180), (5318, 52920), (5880, 47862), (6615, 42544), (7056, 39885), (7560, 37226), (7977, 35280), (8820, 31908), (10584, 26590), (10636, 26460), (11760, 23931), (13230, 21272), (13295, 21168), (15120, 18613), (15954, 17640)]