128575880

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{60649}}^1$

素因数の和:60713

約数の個数: 32

約数和(自身を含む): 294759000

約数和(自身を除く): 166183120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 60649, 121298, 242596, 303245, 485192, 606490, 1212980, 2425960, 3214397, 6428794, 12857588, 16071985, 25715176, 32143970, 64287940, 128575880]

約数ペア:

[(1, 128575880), (2, 64287940), (4, 32143970), (5, 25715176), (8, 16071985), (10, 12857588), (20, 6428794), (40, 3214397), (53, 2425960), (106, 1212980), (212, 606490), (265, 485192), (424, 303245), (530, 242596), (1060, 121298), (2120, 60649)]