78810480

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{823}}^1$

素因数の和:868

約数の個数: 240

約数和(自身を含む): 318789120

約数和(自身を除く): 239978640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 48, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 105, 112, 114, 120, 126, 133, 140, 144, 152, 168, 171, 180, 190, 210, 228, 240, 252, 266, 280, 285, 304, 315, 336, 342, 360, 380, 399, 420, 456, 504, 532, 560, 570, 630, 665, 684, 720, 760, 798, 823, 840, 855, 912, 1008, 1064, 1140, 1197, 1260, 1330, 1368, 1520, 1596, 1646, 1680, 1710, 1995, 2128, 2280, 2394, 2469, 2520, 2660, 2736, 3192, 3292, 3420, 3990, 4115, 4560, 4788, 4938, 5040, 5320, 5761, 5985, 6384, 6584, 6840, 7407, 7980, 8230, 9576, 9876, 10640, 11522, 11970, 12345, 13168, 13680, 14814, 15637, 15960, 16460, 17283, 19152, 19752, 23044, 23940, 24690, 28805, 29628, 31274, 31920, 32920, 34566, 37035, 39504, 46088, 46911, 47880, 49380, 51849, 57610, 59256, 62548, 65840, 69132, 74070, 78185, 86415, 92176, 93822, 95760, 98760, 103698, 109459, 115220, 118512, 125096, 138264, 140733, 148140, 156370, 172830, 187644, 197520, 207396, 218918, 230440, 234555, 250192, 259245, 276528, 281466, 296280, 312740, 328377, 345660, 375288, 414792, 437836, 460880, 469110, 518490, 547295, 562932, 592560, 625480, 656754, 691320, 703665, 750576, 829584, 875672, 938220, 985131, 1036980, 1094590, 1125864, 1250960, 1313508, 1382640, 1407330, 1641885, 1751344, 1876440, 1970262, 2073960, 2189180, 2251728, 2627016, 2814660, 3283770, 3752880, 3940524, 4147920, 4378360, 4925655, 5254032, 5629320, 6567540, 7881048, 8756720, 9851310, 11258640, 13135080, 15762096, 19702620, 26270160, 39405240, 78810480]

約数ペア:

[(1, 78810480), (2, 39405240), (3, 26270160), (4, 19702620), (5, 15762096), (6, 13135080), (7, 11258640), (8, 9851310), (9, 8756720), (10, 7881048), (12, 6567540), (14, 5629320), (15, 5254032), (16, 4925655), (18, 4378360), (19, 4147920), (20, 3940524), (21, 3752880), (24, 3283770), (28, 2814660), (30, 2627016), (35, 2251728), (36, 2189180), (38, 2073960), (40, 1970262), (42, 1876440), (45, 1751344), (48, 1641885), (56, 1407330), (57, 1382640), (60, 1313508), (63, 1250960), (70, 1125864), (72, 1094590), (76, 1036980), (80, 985131), (84, 938220), (90, 875672), (95, 829584), (105, 750576), (112, 703665), (114, 691320), (120, 656754), (126, 625480), (133, 592560), (140, 562932), (144, 547295), (152, 518490), (168, 469110), (171, 460880), (180, 437836), (190, 414792), (210, 375288), (228, 345660), (240, 328377), (252, 312740), (266, 296280), (280, 281466), (285, 276528), (304, 259245), (315, 250192), (336, 234555), (342, 230440), (360, 218918), (380, 207396), (399, 197520), (420, 187644), (456, 172830), (504, 156370), (532, 148140), (560, 140733), (570, 138264), (630, 125096), (665, 118512), (684, 115220), (720, 109459), (760, 103698), (798, 98760), (823, 95760), (840, 93822), (855, 92176), (912, 86415), (1008, 78185), (1064, 74070), (1140, 69132), (1197, 65840), (1260, 62548), (1330, 59256), (1368, 57610), (1520, 51849), (1596, 49380), (1646, 47880), (1680, 46911), (1710, 46088), (1995, 39504), (2128, 37035), (2280, 34566), (2394, 32920), (2469, 31920), (2520, 31274), (2660, 29628), (2736, 28805), (3192, 24690), (3292, 23940), (3420, 23044), (3990, 19752), (4115, 19152), (4560, 17283), (4788, 16460), (4938, 15960), (5040, 15637), (5320, 14814), (5761, 13680), (5985, 13168), (6384, 12345), (6584, 11970), (6840, 11522), (7407, 10640), (7980, 9876), (8230, 9576)]