66815325

素因数分解:

$3^2\times 5^2\times {\mathrm{149}}^1\times {\mathrm{1993}}^1$

素因数の和:2158

約数の個数: 36

約数和(自身を含む): 120537300

約数和(自身を除く): 53721975

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 149, 225, 447, 745, 1341, 1993, 2235, 3725, 5979, 6705, 9965, 11175, 17937, 29895, 33525, 49825, 89685, 149475, 296957, 448425, 890871, 1484785, 2672613, 4454355, 7423925, 13363065, 22271775, 66815325]

約数ペア:

[(1, 66815325), (3, 22271775), (5, 13363065), (9, 7423925), (15, 4454355), (25, 2672613), (45, 1484785), (75, 890871), (149, 448425), (225, 296957), (447, 149475), (745, 89685), (1341, 49825), (1993, 33525), (2235, 29895), (3725, 17937), (5979, 11175), (6705, 9965)]