208335

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:87

約数の個数: 32

約数和(自身を含む): 380160

約数和(自身を除く): 171825

約数列:

[1, 3, 5, 15, 17, 19, 43, 51, 57, 85, 95, 129, 215, 255, 285, 323, 645, 731, 817, 969, 1615, 2193, 2451, 3655, 4085, 4845, 10965, 12255, 13889, 41667, 69445, 208335]

約数ペア:

[(1, 208335), (3, 69445), (5, 41667), (15, 13889), (17, 12255), (19, 10965), (43, 4845), (51, 4085), (57, 3655), (85, 2451), (95, 2193), (129, 1615), (215, 969), (255, 817), (285, 731), (323, 645)]