51705880

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{3323}}^1$

素因数の和:3723

約数の個数: 32

約数和(自身を含む): 116672400

約数和(自身を除く): 64966520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3323, 3890, 6646, 7780, 13292, 15560, 16615, 26584, 33230, 66460, 132920, 1292647, 2585294, 5170588, 6463235, 10341176, 12926470, 25852940, 51705880]

約数ペア:

[(1, 51705880), (2, 25852940), (4, 12926470), (5, 10341176), (8, 6463235), (10, 5170588), (20, 2585294), (40, 1292647), (389, 132920), (778, 66460), (1556, 33230), (1945, 26584), (3112, 16615), (3323, 15560), (3890, 13292), (6646, 7780)]