202807540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{780029}}^1$

素因数の和:780051

約数の個数: 24

約数和(自身を含む): 458657640

約数和(自身を除く): 255850100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 780029, 1560058, 3120116, 3900145, 7800290, 10140377, 15600580, 20280754, 40561508, 50701885, 101403770, 202807540]

約数ペア:

[(1, 202807540), (2, 101403770), (4, 50701885), (5, 40561508), (10, 20280754), (13, 15600580), (20, 10140377), (26, 7800290), (52, 3900145), (65, 3120116), (130, 1560058), (260, 780029)]