78415047

素因数分解:

$3^4\times {\mathrm{971}}^1\times {\mathrm{997}}^1$

素因数の和:1980

約数の個数: 20

約数和(自身を含む): 117376776

約数和(自身を除く): 38961729

約数列:

[1, 3, 9, 27, 81, 971, 997, 2913, 2991, 8739, 8973, 26217, 26919, 78651, 80757, 968087, 2904261, 8712783, 26138349, 78415047]

約数ペア:

[(1, 78415047), (3, 26138349), (9, 8712783), (27, 2904261), (81, 968087), (971, 80757), (997, 78651), (2913, 26919), (2991, 26217), (8739, 8973)]