261967440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{283}}^1$

素因数の和:354

約数の個数: 320

約数和(自身を含む): 1014220800

約数和(自身を除く): 752253360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 29, 30, 35, 38, 40, 42, 48, 56, 57, 58, 60, 70, 76, 80, 84, 87, 95, 105, 112, 114, 116, 120, 133, 140, 145, 152, 168, 174, 190, 203, 210, 228, 232, 240, 266, 280, 283, 285, 290, 304, 336, 348, 380, 399, 406, 420, 435, 456, 464, 532, 551, 560, 566, 570, 580, 609, 665, 696, 760, 798, 812, 840, 849, 870, 912, 1015, 1064, 1102, 1132, 1140, 1160, 1218, 1330, 1392, 1415, 1520, 1596, 1624, 1653, 1680, 1698, 1740, 1981, 1995, 2030, 2128, 2204, 2264, 2280, 2320, 2436, 2660, 2755, 2830, 3045, 3192, 3248, 3306, 3396, 3480, 3857, 3962, 3990, 4060, 4245, 4408, 4528, 4560, 4872, 5320, 5377, 5510, 5660, 5943, 6090, 6384, 6612, 6792, 6960, 7714, 7924, 7980, 8120, 8207, 8265, 8490, 8816, 9744, 9905, 10640, 10754, 11020, 11320, 11571, 11886, 12180, 13224, 13584, 15428, 15848, 15960, 16131, 16240, 16414, 16530, 16980, 19285, 19810, 21508, 22040, 22640, 23142, 23772, 24360, 24621, 26448, 26885, 29715, 30856, 31696, 31920, 32262, 32828, 33060, 33960, 37639, 38570, 39620, 41035, 43016, 44080, 46284, 47544, 48720, 49242, 53770, 57449, 57855, 59430, 61712, 64524, 65656, 66120, 67920, 75278, 77140, 79240, 80655, 82070, 86032, 92568, 95088, 98484, 107540, 112917, 114898, 115710, 118860, 123105, 129048, 131312, 132240, 150556, 154280, 155933, 158480, 161310, 164140, 172347, 185136, 188195, 196968, 215080, 225834, 229796, 231420, 237720, 246210, 258096, 287245, 301112, 308560, 311866, 322620, 328280, 344694, 376390, 393936, 430160, 451668, 459592, 462840, 467799, 475440, 492420, 564585, 574490, 602224, 623732, 645240, 656560, 689388, 752780, 779665, 861735, 903336, 919184, 925680, 935598, 984840, 1091531, 1129170, 1148980, 1247464, 1290480, 1378776, 1505560, 1559330, 1723470, 1806672, 1871196, 1969680, 2183062, 2258340, 2297960, 2338995, 2494928, 2757552, 3011120, 3118660, 3274593, 3446940, 3742392, 4366124, 4516680, 4595920, 4677990, 5457655, 6237320, 6549186, 6893880, 7484784, 8732248, 9033360, 9355980, 10915310, 12474640, 13098372, 13787760, 16372965, 17464496, 18711960, 21830620, 26196744, 32745930, 37423920, 43661240, 52393488, 65491860, 87322480, 130983720, 261967440]

約数ペア:

[(1, 261967440), (2, 130983720), (3, 87322480), (4, 65491860), (5, 52393488), (6, 43661240), (7, 37423920), (8, 32745930), (10, 26196744), (12, 21830620), (14, 18711960), (15, 17464496), (16, 16372965), (19, 13787760), (20, 13098372), (21, 12474640), (24, 10915310), (28, 9355980), (29, 9033360), (30, 8732248), (35, 7484784), (38, 6893880), (40, 6549186), (42, 6237320), (48, 5457655), (56, 4677990), (57, 4595920), (58, 4516680), (60, 4366124), (70, 3742392), (76, 3446940), (80, 3274593), (84, 3118660), (87, 3011120), (95, 2757552), (105, 2494928), (112, 2338995), (114, 2297960), (116, 2258340), (120, 2183062), (133, 1969680), (140, 1871196), (145, 1806672), (152, 1723470), (168, 1559330), (174, 1505560), (190, 1378776), (203, 1290480), (210, 1247464), (228, 1148980), (232, 1129170), (240, 1091531), (266, 984840), (280, 935598), (283, 925680), (285, 919184), (290, 903336), (304, 861735), (336, 779665), (348, 752780), (380, 689388), (399, 656560), (406, 645240), (420, 623732), (435, 602224), (456, 574490), (464, 564585), (532, 492420), (551, 475440), (560, 467799), (566, 462840), (570, 459592), (580, 451668), (609, 430160), (665, 393936), (696, 376390), (760, 344694), (798, 328280), (812, 322620), (840, 311866), (849, 308560), (870, 301112), (912, 287245), (1015, 258096), (1064, 246210), (1102, 237720), (1132, 231420), (1140, 229796), (1160, 225834), (1218, 215080), (1330, 196968), (1392, 188195), (1415, 185136), (1520, 172347), (1596, 164140), (1624, 161310), (1653, 158480), (1680, 155933), (1698, 154280), (1740, 150556), (1981, 132240), (1995, 131312), (2030, 129048), (2128, 123105), (2204, 118860), (2264, 115710), (2280, 114898), (2320, 112917), (2436, 107540), (2660, 98484), (2755, 95088), (2830, 92568), (3045, 86032), (3192, 82070), (3248, 80655), (3306, 79240), (3396, 77140), (3480, 75278), (3857, 67920), (3962, 66120), (3990, 65656), (4060, 64524), (4245, 61712), (4408, 59430), (4528, 57855), (4560, 57449), (4872, 53770), (5320, 49242), (5377, 48720), (5510, 47544), (5660, 46284), (5943, 44080), (6090, 43016), (6384, 41035), (6612, 39620), (6792, 38570), (6960, 37639), (7714, 33960), (7924, 33060), (7980, 32828), (8120, 32262), (8207, 31920), (8265, 31696), (8490, 30856), (8816, 29715), (9744, 26885), (9905, 26448), (10640, 24621), (10754, 24360), (11020, 23772), (11320, 23142), (11571, 22640), (11886, 22040), (12180, 21508), (13224, 19810), (13584, 19285), (15428, 16980), (15848, 16530), (15960, 16414), (16131, 16240)]