208889385

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{1637}}^1$

素因数の和:1873

約数の個数: 32

約数和(自身を含む): 343429632

約数和(自身を除く): 134540247

約数列:

[1, 3, 5, 15, 47, 141, 181, 235, 543, 705, 905, 1637, 2715, 4911, 8185, 8507, 24555, 25521, 42535, 76939, 127605, 230817, 296297, 384695, 888891, 1154085, 1481485, 4444455, 13925959, 41777877, 69629795, 208889385]

約数ペア:

[(1, 208889385), (3, 69629795), (5, 41777877), (15, 13925959), (47, 4444455), (141, 1481485), (181, 1154085), (235, 888891), (543, 384695), (705, 296297), (905, 230817), (1637, 127605), (2715, 76939), (4911, 42535), (8185, 25521), (8507, 24555)]