81375240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{6991}}^1$

素因数の和:7102

約数の個数: 64

約数和(自身を含む): 246677760

約数和(自身を除く): 165302520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 485, 582, 776, 970, 1164, 1455, 1940, 2328, 2910, 3880, 5820, 6991, 11640, 13982, 20973, 27964, 34955, 41946, 55928, 69910, 83892, 104865, 139820, 167784, 209730, 279640, 419460, 678127, 838920, 1356254, 2034381, 2712508, 3390635, 4068762, 5425016, 6781270, 8137524, 10171905, 13562540, 16275048, 20343810, 27125080, 40687620, 81375240]

約数ペア:

[(1, 81375240), (2, 40687620), (3, 27125080), (4, 20343810), (5, 16275048), (6, 13562540), (8, 10171905), (10, 8137524), (12, 6781270), (15, 5425016), (20, 4068762), (24, 3390635), (30, 2712508), (40, 2034381), (60, 1356254), (97, 838920), (120, 678127), (194, 419460), (291, 279640), (388, 209730), (485, 167784), (582, 139820), (776, 104865), (970, 83892), (1164, 69910), (1455, 55928), (1940, 41946), (2328, 34955), (2910, 27964), (3880, 20973), (5820, 13982), (6991, 11640)]