81793395

素因数分解:

$3^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4297}}^1$

素因数の和:4361

約数の個数: 40

約数和(自身を含む): 149776704

約数和(自身を除く): 67983309

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 81, 135, 141, 235, 405, 423, 705, 1269, 2115, 3807, 4297, 6345, 12891, 19035, 21485, 38673, 64455, 116019, 193365, 201959, 348057, 580095, 605877, 1009795, 1740285, 1817631, 3029385, 5452893, 9088155, 16358679, 27264465, 81793395]

約数ペア:

[(1, 81793395), (3, 27264465), (5, 16358679), (9, 9088155), (15, 5452893), (27, 3029385), (45, 1817631), (47, 1740285), (81, 1009795), (135, 605877), (141, 580095), (235, 348057), (405, 201959), (423, 193365), (705, 116019), (1269, 64455), (2115, 38673), (3807, 21485), (4297, 19035), (6345, 12891)]