81551205

素因数分解:

$3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3301}}^1$

素因数の和:3379

約数の個数: 40

約数和(自身を含む): 148629624

約数和(自身を除く): 67078419

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 183, 305, 405, 549, 915, 1647, 2745, 3301, 4941, 8235, 9903, 16505, 24705, 29709, 49515, 89127, 148545, 201361, 267381, 445635, 604083, 1006805, 1336905, 1812249, 3020415, 5436747, 9061245, 16310241, 27183735, 81551205]

約数ペア:

[(1, 81551205), (3, 27183735), (5, 16310241), (9, 9061245), (15, 5436747), (27, 3020415), (45, 1812249), (61, 1336905), (81, 1006805), (135, 604083), (183, 445635), (305, 267381), (405, 201361), (549, 148545), (915, 89127), (1647, 49515), (2745, 29709), (3301, 24705), (4941, 16505), (8235, 9903)]