81528015

素因数分解:

$3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 133076160

約数和(自身を除く): 51548145

約数列:

[1, 3, 5, 15, 97, 137, 291, 409, 411, 485, 685, 1227, 1455, 2045, 2055, 6135, 13289, 39673, 39867, 56033, 66445, 119019, 168099, 198365, 199335, 280165, 595095, 840495, 5435201, 16305603, 27176005, 81528015]

約数ペア:

[(1, 81528015), (3, 27176005), (5, 16305603), (15, 5435201), (97, 840495), (137, 595095), (291, 280165), (409, 199335), (411, 198365), (485, 168099), (685, 119019), (1227, 66445), (1455, 56033), (2045, 39867), (2055, 39673), (6135, 13289)]