198401080

素因数分解:

$2^3\times 5^1\times {\mathrm{4960027}}^1$

素因数の和:4960038

約数の個数: 16

約数和(自身を含む): 446402520

約数和(自身を除く): 248001440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4960027, 9920054, 19840108, 24800135, 39680216, 49600270, 99200540, 198401080]

約数ペア:

[(1, 198401080), (2, 99200540), (4, 49600270), (5, 39680216), (8, 24800135), (10, 19840108), (20, 9920054), (40, 4960027)]