68478480

素因数分解:

$2^4\times 3^3\times 5^1\times 7^2\times {\mathrm{647}}^1$

素因数の和:683

約数の個数: 240

約数和(自身を含む): 274803840

約数和(自身を除く): 206325360

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, 647, 720, 735, 756, 784, 840, 882, 945, 980, 1008, 1080, 1176, 1260, 1294, 1323, 1470, 1512, 1680, 1764, 1890, 1941, 1960, 2160, 2205, 2352, 2520, 2588, 2646, 2940, 3024, 3235, 3528, 3780, 3882, 3920, 4410, 4529, 5040, 5176, 5292, 5823, 5880, 6470, 6615, 7056, 7560, 7764, 8820, 9058, 9705, 10352, 10584, 11646, 11760, 12940, 13230, 13587, 15120, 15528, 17469, 17640, 18116, 19410, 21168, 22645, 23292, 25880, 26460, 27174, 29115, 31056, 31703, 34938, 35280, 36232, 38820, 40761, 45290, 46584, 51760, 52920, 54348, 58230, 63406, 67935, 69876, 72464, 77640, 81522, 87345, 90580, 93168, 95109, 105840, 108696, 116460, 122283, 126812, 135870, 139752, 155280, 158515, 163044, 174690, 181160, 190218, 203805, 217392, 232920, 244566, 253624, 271740, 279504, 285327, 317030, 326088, 349380, 362320, 380436, 407610, 465840, 475545, 489132, 507248, 543480, 570654, 611415, 634060, 652176, 698760, 760872, 815220, 855981, 951090, 978264, 1086960, 1141308, 1222830, 1268120, 1397520, 1426635, 1521744, 1630440, 1711962, 1902180, 1956528, 2282616, 2445660, 2536240, 2853270, 3260880, 3423924, 3804360, 4279905, 4565232, 4891320, 5706540, 6847848, 7608720, 8559810, 9782640, 11413080, 13695696, 17119620, 22826160, 34239240, 68478480]

約数ペア:

[(1, 68478480), (2, 34239240), (3, 22826160), (4, 17119620), (5, 13695696), (6, 11413080), (7, 9782640), (8, 8559810), (9, 7608720), (10, 6847848), (12, 5706540), (14, 4891320), (15, 4565232), (16, 4279905), (18, 3804360), (20, 3423924), (21, 3260880), (24, 2853270), (27, 2536240), (28, 2445660), (30, 2282616), (35, 1956528), (36, 1902180), (40, 1711962), (42, 1630440), (45, 1521744), (48, 1426635), (49, 1397520), (54, 1268120), (56, 1222830), (60, 1141308), (63, 1086960), (70, 978264), (72, 951090), (80, 855981), (84, 815220), (90, 760872), (98, 698760), (105, 652176), (108, 634060), (112, 611415), (120, 570654), (126, 543480), (135, 507248), (140, 489132), (144, 475545), (147, 465840), (168, 407610), (180, 380436), (189, 362320), (196, 349380), (210, 326088), (216, 317030), (240, 285327), (245, 279504), (252, 271740), (270, 253624), (280, 244566), (294, 232920), (315, 217392), (336, 203805), (360, 190218), (378, 181160), (392, 174690), (420, 163044), (432, 158515), (441, 155280), (490, 139752), (504, 135870), (540, 126812), (560, 122283), (588, 116460), (630, 108696), (647, 105840), (720, 95109), (735, 93168), (756, 90580), (784, 87345), (840, 81522), (882, 77640), (945, 72464), (980, 69876), (1008, 67935), (1080, 63406), (1176, 58230), (1260, 54348), (1294, 52920), (1323, 51760), (1470, 46584), (1512, 45290), (1680, 40761), (1764, 38820), (1890, 36232), (1941, 35280), (1960, 34938), (2160, 31703), (2205, 31056), (2352, 29115), (2520, 27174), (2588, 26460), (2646, 25880), (2940, 23292), (3024, 22645), (3235, 21168), (3528, 19410), (3780, 18116), (3882, 17640), (3920, 17469), (4410, 15528), (4529, 15120), (5040, 13587), (5176, 13230), (5292, 12940), (5823, 11760), (5880, 11646), (6470, 10584), (6615, 10352), (7056, 9705), (7560, 9058), (7764, 8820)]