20768660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1409}}^1$

素因数の和:1496

約数の個数: 48

約数和(自身を含む): 48323520

約数和(自身を除く): 27554860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1409, 1474, 2818, 2948, 3685, 5636, 7045, 7370, 14090, 14740, 15499, 28180, 30998, 61996, 77495, 94403, 154990, 188806, 309980, 377612, 472015, 944030, 1038433, 1888060, 2076866, 4153732, 5192165, 10384330, 20768660]

約数ペア:

[(1, 20768660), (2, 10384330), (4, 5192165), (5, 4153732), (10, 2076866), (11, 1888060), (20, 1038433), (22, 944030), (44, 472015), (55, 377612), (67, 309980), (110, 188806), (134, 154990), (220, 94403), (268, 77495), (335, 61996), (670, 30998), (737, 28180), (1340, 15499), (1409, 14740), (1474, 14090), (2818, 7370), (2948, 7045), (3685, 5636)]