965642780

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{245087}}^1$

素因数の和:245293

約数の個数: 24

約数和(自身を含む): 2038151808

約数和(自身を除く): 1072509028

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 245087, 490174, 980348, 1225435, 2450870, 4901740, 48282139, 96564278, 193128556, 241410695, 482821390, 965642780]

約数ペア:

[(1, 965642780), (2, 482821390), (4, 241410695), (5, 193128556), (10, 96564278), (20, 48282139), (197, 4901740), (394, 2450870), (788, 1225435), (985, 980348), (1970, 490174), (3940, 245087)]