8720780

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1609}}^1$

素因数の和:1889

約数の個数: 24

約数和(自身を含む): 18392640

約数和(自身を除く): 9671860

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 1609, 2710, 3218, 5420, 6436, 8045, 16090, 32180, 436039, 872078, 1744156, 2180195, 4360390, 8720780]

約数ペア:

[(1, 8720780), (2, 4360390), (4, 2180195), (5, 1744156), (10, 872078), (20, 436039), (271, 32180), (542, 16090), (1084, 8045), (1355, 6436), (1609, 5420), (2710, 3218)]