71487920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127657}}^1$

素因数の和:127677

約数の個数: 40

約数和(自身を含む): 189955104

約数和(自身を除く): 118467184

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 127657, 255314, 510628, 638285, 893599, 1021256, 1276570, 1787198, 2042512, 2553140, 3574396, 4467995, 5106280, 7148792, 8935990, 10212560, 14297584, 17871980, 35743960, 71487920]

約数ペア:

[(1, 71487920), (2, 35743960), (4, 17871980), (5, 14297584), (7, 10212560), (8, 8935990), (10, 7148792), (14, 5106280), (16, 4467995), (20, 3574396), (28, 2553140), (35, 2042512), (40, 1787198), (56, 1276570), (70, 1021256), (80, 893599), (112, 638285), (140, 510628), (280, 255314), (560, 127657)]