81648165

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1\times {\mathrm{647}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 134369280

約数和(自身を除く): 52721115

約数列:

[1, 3, 5, 15, 47, 141, 179, 235, 537, 647, 705, 895, 1941, 2685, 3235, 8413, 9705, 25239, 30409, 42065, 91227, 115813, 126195, 152045, 347439, 456135, 579065, 1737195, 5443211, 16329633, 27216055, 81648165]

約数ペア:

[(1, 81648165), (3, 27216055), (5, 16329633), (15, 5443211), (47, 1737195), (141, 579065), (179, 456135), (235, 347439), (537, 152045), (647, 126195), (705, 115813), (895, 91227), (1941, 42065), (2685, 30409), (3235, 25239), (8413, 9705)]