13089220

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1021}}^1$

素因数の和:1671

約数の個数: 24

約数和(自身を含む): 27557208

約数和(自身を除く): 14467988

約数列:

[1, 2, 4, 5, 10, 20, 641, 1021, 1282, 2042, 2564, 3205, 4084, 5105, 6410, 10210, 12820, 20420, 654461, 1308922, 2617844, 3272305, 6544610, 13089220]

約数ペア:

[(1, 13089220), (2, 6544610), (4, 3272305), (5, 2617844), (10, 1308922), (20, 654461), (641, 20420), (1021, 12820), (1282, 10210), (2042, 6410), (2564, 5105), (3205, 4084)]