66431745

素因数分解:

$3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2689}}^1$

素因数の和:2767

約数の個数: 40

約数和(自身を含む): 121082280

約数和(自身を除く): 54650535

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 183, 305, 405, 549, 915, 1647, 2689, 2745, 4941, 8067, 8235, 13445, 24201, 24705, 40335, 72603, 121005, 164029, 217809, 363015, 492087, 820145, 1089045, 1476261, 2460435, 4428783, 7381305, 13286349, 22143915, 66431745]

約数ペア:

[(1, 66431745), (3, 22143915), (5, 13286349), (9, 7381305), (15, 4428783), (27, 2460435), (45, 1476261), (61, 1089045), (81, 820145), (135, 492087), (183, 363015), (305, 217809), (405, 164029), (549, 121005), (915, 72603), (1647, 40335), (2689, 24705), (2745, 24201), (4941, 13445), (8067, 8235)]