18052385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^2$

素因数の和:114

約数の個数: 36

約数和(自身を含む): 25607484

約数和(自身を除く): 7555099

約数列:

[1, 5, 13, 17, 31, 65, 85, 155, 221, 289, 403, 527, 961, 1105, 1445, 2015, 2635, 3757, 4805, 6851, 8959, 12493, 16337, 18785, 34255, 44795, 62465, 81685, 116467, 212381, 277729, 582335, 1061905, 1388645, 3610477, 18052385]

約数ペア:

[(1, 18052385), (5, 3610477), (13, 1388645), (17, 1061905), (31, 582335), (65, 277729), (85, 212381), (155, 116467), (221, 81685), (289, 62465), (403, 44795), (527, 34255), (961, 18785), (1105, 16337), (1445, 12493), (2015, 8959), (2635, 6851), (3757, 4805)]