77720720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:110

約数の個数: 240

約数和(自身を含む): 240651264

約数和(自身を除く): 162930544

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 31, 35, 37, 40, 44, 55, 56, 62, 70, 74, 77, 80, 88, 110, 112, 121, 124, 140, 148, 154, 155, 176, 185, 217, 220, 242, 248, 259, 280, 296, 308, 310, 341, 370, 385, 407, 434, 440, 484, 496, 518, 560, 592, 605, 616, 620, 682, 740, 770, 814, 847, 868, 880, 968, 1036, 1085, 1147, 1210, 1232, 1240, 1295, 1364, 1480, 1540, 1628, 1694, 1705, 1736, 1936, 2035, 2072, 2170, 2294, 2387, 2420, 2480, 2590, 2728, 2849, 2960, 3080, 3256, 3388, 3410, 3472, 3751, 4070, 4144, 4235, 4340, 4477, 4588, 4774, 4840, 5180, 5456, 5698, 5735, 6160, 6512, 6776, 6820, 7502, 8029, 8140, 8470, 8680, 8954, 9176, 9548, 9680, 10360, 11396, 11470, 11935, 12617, 13552, 13640, 14245, 15004, 16058, 16280, 16940, 17360, 17908, 18352, 18755, 19096, 20720, 22385, 22792, 22940, 23870, 25234, 26257, 27280, 28490, 30008, 31339, 32116, 32560, 33880, 35816, 37510, 38192, 40145, 44770, 45584, 45880, 47740, 50468, 52514, 56980, 60016, 62678, 63085, 64232, 67760, 71632, 75020, 80290, 88319, 89540, 91760, 95480, 100936, 105028, 113960, 125356, 126170, 128464, 131285, 138787, 150040, 156695, 160580, 176638, 179080, 190960, 201872, 210056, 227920, 250712, 252340, 262570, 277574, 300080, 313390, 321160, 353276, 358160, 420112, 441595, 501424, 504680, 525140, 555148, 626780, 642320, 693935, 706552, 883190, 971509, 1009360, 1050280, 1110296, 1253560, 1387870, 1413104, 1766380, 1943018, 2100560, 2220592, 2507120, 2775740, 3532760, 3886036, 4857545, 5551480, 7065520, 7772072, 9715090, 11102960, 15544144, 19430180, 38860360, 77720720]

約数ペア:

[(1, 77720720), (2, 38860360), (4, 19430180), (5, 15544144), (7, 11102960), (8, 9715090), (10, 7772072), (11, 7065520), (14, 5551480), (16, 4857545), (20, 3886036), (22, 3532760), (28, 2775740), (31, 2507120), (35, 2220592), (37, 2100560), (40, 1943018), (44, 1766380), (55, 1413104), (56, 1387870), (62, 1253560), (70, 1110296), (74, 1050280), (77, 1009360), (80, 971509), (88, 883190), (110, 706552), (112, 693935), (121, 642320), (124, 626780), (140, 555148), (148, 525140), (154, 504680), (155, 501424), (176, 441595), (185, 420112), (217, 358160), (220, 353276), (242, 321160), (248, 313390), (259, 300080), (280, 277574), (296, 262570), (308, 252340), (310, 250712), (341, 227920), (370, 210056), (385, 201872), (407, 190960), (434, 179080), (440, 176638), (484, 160580), (496, 156695), (518, 150040), (560, 138787), (592, 131285), (605, 128464), (616, 126170), (620, 125356), (682, 113960), (740, 105028), (770, 100936), (814, 95480), (847, 91760), (868, 89540), (880, 88319), (968, 80290), (1036, 75020), (1085, 71632), (1147, 67760), (1210, 64232), (1232, 63085), (1240, 62678), (1295, 60016), (1364, 56980), (1480, 52514), (1540, 50468), (1628, 47740), (1694, 45880), (1705, 45584), (1736, 44770), (1936, 40145), (2035, 38192), (2072, 37510), (2170, 35816), (2294, 33880), (2387, 32560), (2420, 32116), (2480, 31339), (2590, 30008), (2728, 28490), (2849, 27280), (2960, 26257), (3080, 25234), (3256, 23870), (3388, 22940), (3410, 22792), (3472, 22385), (3751, 20720), (4070, 19096), (4144, 18755), (4235, 18352), (4340, 17908), (4477, 17360), (4588, 16940), (4774, 16280), (4840, 16058), (5180, 15004), (5456, 14245), (5698, 13640), (5735, 13552), (6160, 12617), (6512, 11935), (6776, 11470), (6820, 11396), (7502, 10360), (8029, 9680), (8140, 9548), (8470, 9176), (8680, 8954)]