80759680

素因数分解:

$2^7\times 5^1\times {\mathrm{257}}^1\times {\mathrm{491}}^1$

素因数の和:767

約数の個数: 64

約数和(自身を含む): 194212080

約数和(自身を除く): 113452400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 257, 320, 491, 514, 640, 982, 1028, 1285, 1964, 2056, 2455, 2570, 3928, 4112, 4910, 5140, 7856, 8224, 9820, 10280, 15712, 16448, 19640, 20560, 31424, 32896, 39280, 41120, 62848, 78560, 82240, 126187, 157120, 164480, 252374, 314240, 504748, 630935, 1009496, 1261870, 2018992, 2523740, 4037984, 5047480, 8075968, 10094960, 16151936, 20189920, 40379840, 80759680]

約数ペア:

[(1, 80759680), (2, 40379840), (4, 20189920), (5, 16151936), (8, 10094960), (10, 8075968), (16, 5047480), (20, 4037984), (32, 2523740), (40, 2018992), (64, 1261870), (80, 1009496), (128, 630935), (160, 504748), (257, 314240), (320, 252374), (491, 164480), (514, 157120), (640, 126187), (982, 82240), (1028, 78560), (1285, 62848), (1964, 41120), (2056, 39280), (2455, 32896), (2570, 31424), (3928, 20560), (4112, 19640), (4910, 16448), (5140, 15712), (7856, 10280), (8224, 9820)]