199026940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1421621}}^1$

素因数の和:1421637

約数の個数: 24

約数和(自身を含む): 477664992

約数和(自身を除く): 278638052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1421621, 2843242, 5686484, 7108105, 9951347, 14216210, 19902694, 28432420, 39805388, 49756735, 99513470, 199026940]

約数ペア:

[(1, 199026940), (2, 99513470), (4, 49756735), (5, 39805388), (7, 28432420), (10, 19902694), (14, 14216210), (20, 9951347), (28, 7108105), (35, 5686484), (70, 2843242), (140, 1421621)]