205905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:105

約数の個数: 32

約数和(自身を含む): 393984

約数和(自身を除く): 188079

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 53, 105, 111, 159, 185, 259, 265, 371, 555, 777, 795, 1113, 1295, 1855, 1961, 3885, 5565, 5883, 9805, 13727, 29415, 41181, 68635, 205905]

約数ペア:

[(1, 205905), (3, 68635), (5, 41181), (7, 29415), (15, 13727), (21, 9805), (35, 5883), (37, 5565), (53, 3885), (105, 1961), (111, 1855), (159, 1295), (185, 1113), (259, 795), (265, 777), (371, 555)]