161406025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{547}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 232395840

約数和(自身を除く): 70989815

約数列:

[1, 5, 11, 25, 29, 37, 55, 145, 185, 275, 319, 407, 547, 725, 925, 1073, 1595, 2035, 2735, 5365, 6017, 7975, 10175, 11803, 13675, 15863, 20239, 26825, 30085, 59015, 79315, 101195, 150425, 174493, 222629, 295075, 396575, 505975, 586931, 872465, 1113145, 2934655, 4362325, 5565725, 6456241, 14673275, 32281205, 161406025]

約数ペア:

[(1, 161406025), (5, 32281205), (11, 14673275), (25, 6456241), (29, 5565725), (37, 4362325), (55, 2934655), (145, 1113145), (185, 872465), (275, 586931), (319, 505975), (407, 396575), (547, 295075), (725, 222629), (925, 174493), (1073, 150425), (1595, 101195), (2035, 79315), (2735, 59015), (5365, 30085), (6017, 26825), (7975, 20239), (10175, 15863), (11803, 13675)]