55128385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 74511360

約数和(自身を除く): 19382975

約数列:

[1, 5, 13, 31, 65, 109, 155, 251, 403, 545, 1255, 1417, 2015, 3263, 3379, 7085, 7781, 16315, 16895, 27359, 38905, 43927, 101153, 136795, 219635, 355667, 505765, 848129, 1778335, 4240645, 11025677, 55128385]

約数ペア:

[(1, 55128385), (5, 11025677), (13, 4240645), (31, 1778335), (65, 848129), (109, 505765), (155, 355667), (251, 219635), (403, 136795), (545, 101153), (1255, 43927), (1417, 38905), (2015, 27359), (3263, 16895), (3379, 16315), (7085, 7781)]