81227185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{739}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 111888000

約数和(自身を除く): 30660815

約数列:

[1, 5, 13, 19, 65, 89, 95, 247, 445, 739, 1157, 1235, 1691, 3695, 5785, 8455, 9607, 14041, 21983, 48035, 65771, 70205, 109915, 182533, 328855, 855023, 912665, 1249649, 4275115, 6248245, 16245437, 81227185]

約数ペア:

[(1, 81227185), (5, 16245437), (13, 6248245), (19, 4275115), (65, 1249649), (89, 912665), (95, 855023), (247, 328855), (445, 182533), (739, 109915), (1157, 70205), (1235, 65771), (1691, 48035), (3695, 21983), (5785, 14041), (8455, 9607)]