55128440

素因数分解:

$2^3\times 5^1\times {\mathrm{863}}^1\times {\mathrm{1597}}^1$

素因数の和:2471

約数の個数: 32

約数和(自身を含む): 124260480

約数和(自身を除く): 69132040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 863, 1597, 1726, 3194, 3452, 4315, 6388, 6904, 7985, 8630, 12776, 15970, 17260, 31940, 34520, 63880, 1378211, 2756422, 5512844, 6891055, 11025688, 13782110, 27564220, 55128440]

約数ペア:

[(1, 55128440), (2, 27564220), (4, 13782110), (5, 11025688), (8, 6891055), (10, 5512844), (20, 2756422), (40, 1378211), (863, 63880), (1597, 34520), (1726, 31940), (3194, 17260), (3452, 15970), (4315, 12776), (6388, 8630), (6904, 7985)]