199702960

素因数分解:

$2^4\times 5^1\times {\mathrm{1471}}^1\times {\mathrm{1697}}^1$

素因数の和:3181

約数の個数: 40

約数和(自身を含む): 464898816

約数和(自身を除く): 265195856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1471, 1697, 2942, 3394, 5884, 6788, 7355, 8485, 11768, 13576, 14710, 16970, 23536, 27152, 29420, 33940, 58840, 67880, 117680, 135760, 2496287, 4992574, 9985148, 12481435, 19970296, 24962870, 39940592, 49925740, 99851480, 199702960]

約数ペア:

[(1, 199702960), (2, 99851480), (4, 49925740), (5, 39940592), (8, 24962870), (10, 19970296), (16, 12481435), (20, 9985148), (40, 4992574), (80, 2496287), (1471, 135760), (1697, 117680), (2942, 67880), (3394, 58840), (5884, 33940), (6788, 29420), (7355, 27152), (8485, 23536), (11768, 16970), (13576, 14710)]