81364220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{581173}}^1$

素因数の和:581189

約数の個数: 24

約数和(自身を含む): 195274464

約数和(自身を除く): 113910244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 581173, 1162346, 2324692, 2905865, 4068211, 5811730, 8136422, 11623460, 16272844, 20341055, 40682110, 81364220]

約数ペア:

[(1, 81364220), (2, 40682110), (4, 20341055), (5, 16272844), (7, 11623460), (10, 8136422), (14, 5811730), (20, 4068211), (28, 2905865), (35, 2324692), (70, 1162346), (140, 581173)]