65390420

素因数分解:

$2^2\times 5^1\times {\mathrm{683}}^1\times {\mathrm{4787}}^1$

素因数の和:5479

約数の個数: 24

約数和(自身を含む): 137549664

約数和(自身を除く): 72159244

約数列:

[1, 2, 4, 5, 10, 20, 683, 1366, 2732, 3415, 4787, 6830, 9574, 13660, 19148, 23935, 47870, 95740, 3269521, 6539042, 13078084, 16347605, 32695210, 65390420]

約数ペア:

[(1, 65390420), (2, 32695210), (4, 16347605), (5, 13078084), (10, 6539042), (20, 3269521), (683, 95740), (1366, 47870), (2732, 23935), (3415, 19148), (4787, 13660), (6830, 9574)]