389215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:282

約数の個数: 16

約数和(自身を含む): 522720

約数和(自身を除く): 133505

約数列:

[1, 5, 17, 19, 85, 95, 241, 323, 1205, 1615, 4097, 4579, 20485, 22895, 77843, 389215]

約数ペア:

[(1, 389215), (5, 77843), (17, 22895), (19, 20485), (85, 4579), (95, 4097), (241, 1615), (323, 1205)]