278499260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1071151}}^1$

素因数の和:1071173

約数の個数: 24

約数和(自身を含む): 629837376

約数和(自身を除く): 351338116

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1071151, 2142302, 4284604, 5355755, 10711510, 13924963, 21423020, 27849926, 55699852, 69624815, 139249630, 278499260]

約数ペア:

[(1, 278499260), (2, 139249630), (4, 69624815), (5, 55699852), (10, 27849926), (13, 21423020), (20, 13924963), (26, 10711510), (52, 5355755), (65, 4284604), (130, 2142302), (260, 1071151)]