68633480

素因数分解:

$2^3\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1721}}^1$

素因数の和:2729

約数の個数: 32

約数和(自身を含む): 154670040

約数和(自身を除く): 86036560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997, 1721, 1994, 3442, 3988, 4985, 6884, 7976, 8605, 9970, 13768, 17210, 19940, 34420, 39880, 68840, 1715837, 3431674, 6863348, 8579185, 13726696, 17158370, 34316740, 68633480]

約数ペア:

[(1, 68633480), (2, 34316740), (4, 17158370), (5, 13726696), (8, 8579185), (10, 6863348), (20, 3431674), (40, 1715837), (997, 68840), (1721, 39880), (1994, 34420), (3442, 19940), (3988, 17210), (4985, 13768), (6884, 9970), (7976, 8605)]