208990945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{31123}}^1$

素因数の和:31224

約数の個数: 16

約数和(自身を含む): 268911360

約数和(自身を除く): 59920415

約数列:

[1, 5, 17, 79, 85, 395, 1343, 6715, 31123, 155615, 529091, 2458717, 2645455, 12293585, 41798189, 208990945]

約数ペア:

[(1, 208990945), (5, 41798189), (17, 12293585), (79, 2645455), (85, 2458717), (395, 529091), (1343, 155615), (6715, 31123)]