90261925

素因数分解:

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

素因数の和:119

約数の個数: 54

約数和(自身を含む): 132305334

約数和(自身を除く): 42043409

約数列:

[1, 5, 13, 17, 25, 31, 65, 85, 155, 221, 289, 325, 403, 425, 527, 775, 961, 1105, 1445, 2015, 2635, 3757, 4805, 5525, 6851, 7225, 8959, 10075, 12493, 13175, 16337, 18785, 24025, 34255, 44795, 62465, 81685, 93925, 116467, 171275, 212381, 223975, 277729, 312325, 408425, 582335, 1061905, 1388645, 2911675, 3610477, 5309525, 6943225, 18052385, 90261925]

約数ペア:

[(1, 90261925), (5, 18052385), (13, 6943225), (17, 5309525), (25, 3610477), (31, 2911675), (65, 1388645), (85, 1061905), (155, 582335), (221, 408425), (289, 312325), (325, 277729), (403, 223975), (425, 212381), (527, 171275), (775, 116467), (961, 93925), (1105, 81685), (1445, 62465), (2015, 44795), (2635, 34255), (3757, 24025), (4805, 18785), (5525, 16337), (6851, 13175), (7225, 12493), (8959, 10075)]