80917760

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{821}}^1$

素因数の和:860

約数の個数: 144

約数和(自身を含む): 241944192

約数和(自身を除く): 161026432

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 220, 224, 256, 280, 308, 320, 352, 385, 440, 448, 560, 616, 640, 704, 770, 821, 880, 896, 1120, 1232, 1280, 1408, 1540, 1642, 1760, 1792, 2240, 2464, 2816, 3080, 3284, 3520, 4105, 4480, 4928, 5747, 6160, 6568, 7040, 8210, 8960, 9031, 9856, 11494, 12320, 13136, 14080, 16420, 18062, 19712, 22988, 24640, 26272, 28735, 32840, 36124, 45155, 45976, 49280, 52544, 57470, 63217, 65680, 72248, 90310, 91952, 98560, 105088, 114940, 126434, 131360, 144496, 180620, 183904, 210176, 229880, 252868, 262720, 288992, 316085, 361240, 367808, 459760, 505736, 525440, 577984, 632170, 722480, 735616, 919520, 1011472, 1050880, 1155968, 1264340, 1444960, 1471232, 1839040, 2022944, 2311936, 2528680, 2889920, 3678080, 4045888, 5057360, 5779840, 7356160, 8091776, 10114720, 11559680, 16183552, 20229440, 40458880, 80917760]

約数ペア:

[(1, 80917760), (2, 40458880), (4, 20229440), (5, 16183552), (7, 11559680), (8, 10114720), (10, 8091776), (11, 7356160), (14, 5779840), (16, 5057360), (20, 4045888), (22, 3678080), (28, 2889920), (32, 2528680), (35, 2311936), (40, 2022944), (44, 1839040), (55, 1471232), (56, 1444960), (64, 1264340), (70, 1155968), (77, 1050880), (80, 1011472), (88, 919520), (110, 735616), (112, 722480), (128, 632170), (140, 577984), (154, 525440), (160, 505736), (176, 459760), (220, 367808), (224, 361240), (256, 316085), (280, 288992), (308, 262720), (320, 252868), (352, 229880), (385, 210176), (440, 183904), (448, 180620), (560, 144496), (616, 131360), (640, 126434), (704, 114940), (770, 105088), (821, 98560), (880, 91952), (896, 90310), (1120, 72248), (1232, 65680), (1280, 63217), (1408, 57470), (1540, 52544), (1642, 49280), (1760, 45976), (1792, 45155), (2240, 36124), (2464, 32840), (2816, 28735), (3080, 26272), (3284, 24640), (3520, 22988), (4105, 19712), (4480, 18062), (4928, 16420), (5747, 14080), (6160, 13136), (6568, 12320), (7040, 11494), (8210, 9856), (8960, 9031)]