251609945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{991}}^1$

素因数の和:1145

約数の個数: 32

約数和(自身を含む): 334264320

約数和(自身を除く): 82654375

約数列:

[1, 5, 17, 29, 85, 103, 145, 493, 515, 991, 1751, 2465, 2987, 4955, 8755, 14935, 16847, 28739, 50779, 84235, 102073, 143695, 253895, 488563, 510365, 1735241, 2442815, 2960117, 8676205, 14800585, 50321989, 251609945]

約数ペア:

[(1, 251609945), (5, 50321989), (17, 14800585), (29, 8676205), (85, 2960117), (103, 2442815), (145, 1735241), (493, 510365), (515, 488563), (991, 253895), (1751, 143695), (2465, 102073), (2987, 84235), (4955, 50779), (8755, 28739), (14935, 16847)]