128657565

素因数分解:

$3^6\times 5^1\times {\mathrm{47}}^1\times {\mathrm{751}}^1$

素因数の和:821

約数の個数: 56

約数和(自身を含む): 236717568

約数和(自身を除く): 108060003

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 81, 135, 141, 235, 243, 405, 423, 705, 729, 751, 1215, 1269, 2115, 2253, 3645, 3755, 3807, 6345, 6759, 11265, 11421, 19035, 20277, 33795, 34263, 35297, 57105, 60831, 101385, 105891, 171315, 176485, 182493, 304155, 317673, 529455, 547479, 912465, 953019, 1588365, 2737395, 2859057, 4765095, 8577171, 14295285, 25731513, 42885855, 128657565]

約数ペア:

[(1, 128657565), (3, 42885855), (5, 25731513), (9, 14295285), (15, 8577171), (27, 4765095), (45, 2859057), (47, 2737395), (81, 1588365), (135, 953019), (141, 912465), (235, 547479), (243, 529455), (405, 317673), (423, 304155), (705, 182493), (729, 176485), (751, 171315), (1215, 105891), (1269, 101385), (2115, 60831), (2253, 57105), (3645, 35297), (3755, 34263), (3807, 33795), (6345, 20277), (6759, 19035), (11265, 11421)]