289249985

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{4259}}^1$

素因数の和:4345

約数の個数: 24

約数和(自身を含む): 376652160

約数和(自身を除く): 87402175

約数列:

[1, 5, 17, 47, 85, 235, 289, 799, 1445, 3995, 4259, 13583, 21295, 67915, 72403, 200173, 362015, 1000865, 1230851, 3402941, 6154255, 17014705, 57849997, 289249985]

約数ペア:

[(1, 289249985), (5, 57849997), (17, 17014705), (47, 6154255), (85, 3402941), (235, 1230851), (289, 1000865), (799, 362015), (1445, 200173), (3995, 72403), (4259, 67915), (13583, 21295)]