13212745

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 19837440

約数和(自身を除く): 6624695

約数列:

[1, 5, 7, 13, 35, 65, 71, 91, 355, 409, 455, 497, 923, 2045, 2485, 2863, 4615, 5317, 6461, 14315, 26585, 29039, 32305, 37219, 145195, 186095, 203273, 377507, 1016365, 1887535, 2642549, 13212745]

約数ペア:

[(1, 13212745), (5, 2642549), (7, 1887535), (13, 1016365), (35, 377507), (65, 203273), (71, 186095), (91, 145195), (355, 37219), (409, 32305), (455, 29039), (497, 26585), (923, 14315), (2045, 6461), (2485, 5317), (2863, 4615)]