209780408

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{1542503}}^1$

素因数の和:1542526

約数の個数: 16

約数和(自身を含む): 416476080

約数和(自身を除く): 206695672

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 1542503, 3085006, 6170012, 12340024, 26222551, 52445102, 104890204, 209780408]

約数ペア:

[(1, 209780408), (2, 104890204), (4, 52445102), (8, 26222551), (17, 12340024), (34, 6170012), (68, 3085006), (136, 1542503)]