51490900

素因数分解:

$2^2\times 5^2\times {\mathrm{397}}^1\times {\mathrm{1297}}^1$

素因数の和:1708

約数の個数: 36

約数和(自身を含む): 112103068

約数和(自身を除く): 60612168

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 397, 794, 1297, 1588, 1985, 2594, 3970, 5188, 6485, 7940, 9925, 12970, 19850, 25940, 32425, 39700, 64850, 129700, 514909, 1029818, 2059636, 2574545, 5149090, 10298180, 12872725, 25745450, 51490900]

約数ペア:

[(1, 51490900), (2, 25745450), (4, 12872725), (5, 10298180), (10, 5149090), (20, 2574545), (25, 2059636), (50, 1029818), (100, 514909), (397, 129700), (794, 64850), (1297, 39700), (1588, 32425), (1985, 25940), (2594, 19850), (3970, 12970), (5188, 9925), (6485, 7940)]