640629990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{547}}^1$

素因数の和:604

約数の個数: 288

約数和(自身を含む): 2252779776

約数和(自身を除く): 1612149786

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 18, 21, 22, 26, 30, 33, 35, 39, 42, 45, 55, 63, 65, 66, 70, 77, 78, 90, 91, 99, 105, 110, 117, 126, 130, 143, 154, 165, 169, 182, 195, 198, 210, 231, 234, 273, 286, 315, 330, 338, 385, 390, 429, 455, 462, 495, 507, 546, 547, 585, 630, 693, 715, 770, 819, 845, 858, 910, 990, 1001, 1014, 1094, 1155, 1170, 1183, 1287, 1365, 1386, 1430, 1521, 1638, 1641, 1690, 1859, 2002, 2145, 2310, 2366, 2535, 2574, 2730, 2735, 3003, 3042, 3282, 3465, 3549, 3718, 3829, 4095, 4290, 4923, 5005, 5070, 5470, 5577, 5915, 6006, 6017, 6435, 6930, 7098, 7111, 7605, 7658, 8190, 8205, 9009, 9295, 9846, 10010, 10647, 11154, 11487, 11830, 12034, 12870, 13013, 14222, 15015, 15210, 16410, 16731, 17745, 18018, 18051, 18590, 19145, 21294, 21333, 22974, 24615, 26026, 27885, 30030, 30085, 33462, 34461, 35490, 35555, 36102, 38290, 39039, 42119, 42666, 45045, 49230, 49777, 53235, 54153, 55770, 57435, 60170, 63999, 65065, 68922, 71110, 78078, 78221, 83655, 84238, 90090, 90255, 92443, 99554, 106470, 106665, 108306, 114870, 117117, 126357, 127998, 130130, 149331, 156442, 167310, 172305, 180510, 184886, 195195, 210595, 213330, 234234, 234663, 248885, 252714, 270765, 277329, 298662, 319995, 344610, 379071, 390390, 391105, 421190, 447993, 462215, 469326, 497770, 541530, 547547, 554658, 585585, 631785, 639990, 647101, 703989, 746655, 758142, 782210, 831987, 895986, 924430, 1016873, 1095094, 1171170, 1173315, 1263570, 1294202, 1386645, 1407978, 1493310, 1642641, 1663974, 1895355, 1941303, 2033746, 2239965, 2346630, 2737735, 2773290, 3050619, 3235505, 3285282, 3519945, 3790710, 3882606, 4159935, 4479930, 4927923, 5084365, 5475470, 5823909, 6101238, 6471010, 7039890, 7118111, 8213205, 8319870, 9151857, 9706515, 9855846, 10168730, 11647818, 14236222, 15253095, 16426410, 18303714, 19413030, 21354333, 24639615, 29119545, 30506190, 35590555, 42708666, 45759285, 49279230, 58239090, 64062999, 71181110, 91518570, 106771665, 128125998, 213543330, 320314995, 640629990]

約数ペア:

[(1, 640629990), (2, 320314995), (3, 213543330), (5, 128125998), (6, 106771665), (7, 91518570), (9, 71181110), (10, 64062999), (11, 58239090), (13, 49279230), (14, 45759285), (15, 42708666), (18, 35590555), (21, 30506190), (22, 29119545), (26, 24639615), (30, 21354333), (33, 19413030), (35, 18303714), (39, 16426410), (42, 15253095), (45, 14236222), (55, 11647818), (63, 10168730), (65, 9855846), (66, 9706515), (70, 9151857), (77, 8319870), (78, 8213205), (90, 7118111), (91, 7039890), (99, 6471010), (105, 6101238), (110, 5823909), (117, 5475470), (126, 5084365), (130, 4927923), (143, 4479930), (154, 4159935), (165, 3882606), (169, 3790710), (182, 3519945), (195, 3285282), (198, 3235505), (210, 3050619), (231, 2773290), (234, 2737735), (273, 2346630), (286, 2239965), (315, 2033746), (330, 1941303), (338, 1895355), (385, 1663974), (390, 1642641), (429, 1493310), (455, 1407978), (462, 1386645), (495, 1294202), (507, 1263570), (546, 1173315), (547, 1171170), (585, 1095094), (630, 1016873), (693, 924430), (715, 895986), (770, 831987), (819, 782210), (845, 758142), (858, 746655), (910, 703989), (990, 647101), (1001, 639990), (1014, 631785), (1094, 585585), (1155, 554658), (1170, 547547), (1183, 541530), (1287, 497770), (1365, 469326), (1386, 462215), (1430, 447993), (1521, 421190), (1638, 391105), (1641, 390390), (1690, 379071), (1859, 344610), (2002, 319995), (2145, 298662), (2310, 277329), (2366, 270765), (2535, 252714), (2574, 248885), (2730, 234663), (2735, 234234), (3003, 213330), (3042, 210595), (3282, 195195), (3465, 184886), (3549, 180510), (3718, 172305), (3829, 167310), (4095, 156442), (4290, 149331), (4923, 130130), (5005, 127998), (5070, 126357), (5470, 117117), (5577, 114870), (5915, 108306), (6006, 106665), (6017, 106470), (6435, 99554), (6930, 92443), (7098, 90255), (7111, 90090), (7605, 84238), (7658, 83655), (8190, 78221), (8205, 78078), (9009, 71110), (9295, 68922), (9846, 65065), (10010, 63999), (10647, 60170), (11154, 57435), (11487, 55770), (11830, 54153), (12034, 53235), (12870, 49777), (13013, 49230), (14222, 45045), (15015, 42666), (15210, 42119), (16410, 39039), (16731, 38290), (17745, 36102), (18018, 35555), (18051, 35490), (18590, 34461), (19145, 33462), (21294, 30085), (21333, 30030), (22974, 27885), (24615, 26026)]