16666585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 22619520

約数和(自身を除く): 5952935

約数列:

[1, 5, 13, 43, 65, 67, 89, 215, 335, 445, 559, 871, 1157, 2795, 2881, 3827, 4355, 5785, 5963, 14405, 19135, 29815, 37453, 49751, 77519, 187265, 248755, 256409, 387595, 1282045, 3333317, 16666585]

約数ペア:

[(1, 16666585), (5, 3333317), (13, 1282045), (43, 387595), (65, 256409), (67, 248755), (89, 187265), (215, 77519), (335, 49751), (445, 37453), (559, 29815), (871, 19135), (1157, 14405), (2795, 5963), (2881, 5785), (3827, 4355)]