80812480

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{839}}^1$

素因数の和:906

約数の個数: 112

約数和(自身を含む): 225308160

約数和(自身を除く): 144495680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 64, 70, 80, 86, 112, 140, 160, 172, 215, 224, 280, 301, 320, 344, 430, 448, 560, 602, 688, 839, 860, 1120, 1204, 1376, 1505, 1678, 1720, 2240, 2408, 2752, 3010, 3356, 3440, 4195, 4816, 5873, 6020, 6712, 6880, 8390, 9632, 11746, 12040, 13424, 13760, 16780, 19264, 23492, 24080, 26848, 29365, 33560, 36077, 46984, 48160, 53696, 58730, 67120, 72154, 93968, 96320, 117460, 134240, 144308, 180385, 187936, 234920, 252539, 268480, 288616, 360770, 375872, 469840, 505078, 577232, 721540, 939680, 1010156, 1154464, 1262695, 1443080, 1879360, 2020312, 2308928, 2525390, 2886160, 4040624, 5050780, 5772320, 8081248, 10101560, 11544640, 16162496, 20203120, 40406240, 80812480]

約数ペア:

[(1, 80812480), (2, 40406240), (4, 20203120), (5, 16162496), (7, 11544640), (8, 10101560), (10, 8081248), (14, 5772320), (16, 5050780), (20, 4040624), (28, 2886160), (32, 2525390), (35, 2308928), (40, 2020312), (43, 1879360), (56, 1443080), (64, 1262695), (70, 1154464), (80, 1010156), (86, 939680), (112, 721540), (140, 577232), (160, 505078), (172, 469840), (215, 375872), (224, 360770), (280, 288616), (301, 268480), (320, 252539), (344, 234920), (430, 187936), (448, 180385), (560, 144308), (602, 134240), (688, 117460), (839, 96320), (860, 93968), (1120, 72154), (1204, 67120), (1376, 58730), (1505, 53696), (1678, 48160), (1720, 46984), (2240, 36077), (2408, 33560), (2752, 29365), (3010, 26848), (3356, 24080), (3440, 23492), (4195, 19264), (4816, 16780), (5873, 13760), (6020, 13424), (6712, 12040), (6880, 11746), (8390, 9632)]