71531505

素因数分解:

$3^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{739}}^1$

素因数の和:995

約数の個数: 40

約数和(自身を含む): 128937600

約数和(自身を除く): 57406095

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 239, 405, 717, 739, 1195, 2151, 2217, 3585, 3695, 6453, 6651, 10755, 11085, 19359, 19953, 32265, 33255, 59859, 96795, 99765, 176621, 299295, 529863, 883105, 1589589, 2649315, 4768767, 7947945, 14306301, 23843835, 71531505]

約数ペア:

[(1, 71531505), (3, 23843835), (5, 14306301), (9, 7947945), (15, 4768767), (27, 2649315), (45, 1589589), (81, 883105), (135, 529863), (239, 299295), (405, 176621), (717, 99765), (739, 96795), (1195, 59859), (2151, 33255), (2217, 32265), (3585, 19953), (3695, 19359), (6453, 11085), (6651, 10755)]