490694

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:407

約数の個数: 16

約数和(自身を含む): 798000

約数和(自身を除く): 307306

約数列:

[1, 2, 19, 37, 38, 74, 349, 698, 703, 1406, 6631, 12913, 13262, 25826, 245347, 490694]

約数ペア:

[(1, 490694), (2, 245347), (19, 25826), (37, 13262), (38, 12913), (74, 6631), (349, 1406), (698, 703)]