128045275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 179854560

約数和(自身を除く): 51809285

約数列:

[1, 5, 17, 19, 25, 85, 95, 101, 157, 323, 425, 475, 505, 785, 1615, 1717, 1919, 2525, 2669, 2983, 3925, 8075, 8585, 9595, 13345, 14915, 15857, 32623, 42925, 47975, 50711, 66725, 74575, 79285, 163115, 253555, 269569, 301283, 396425, 815575, 1267775, 1347845, 1506415, 5121811, 6739225, 7532075, 25609055, 128045275]

約数ペア:

[(1, 128045275), (5, 25609055), (17, 7532075), (19, 6739225), (25, 5121811), (85, 1506415), (95, 1347845), (101, 1267775), (157, 815575), (323, 396425), (425, 301283), (475, 269569), (505, 253555), (785, 163115), (1615, 79285), (1717, 74575), (1919, 66725), (2525, 50711), (2669, 47975), (2983, 42925), (3925, 32623), (8075, 15857), (8585, 14915), (9595, 13345)]