1820420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13003}}^1$

素因数の和:13019

約数の個数: 24

約数和(自身を含む): 4369344

約数和(自身を除く): 2548924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 13003, 26006, 52012, 65015, 91021, 130030, 182042, 260060, 364084, 455105, 910210, 1820420]

約数ペア:

[(1, 1820420), (2, 910210), (4, 455105), (5, 364084), (7, 260060), (10, 182042), (14, 130030), (20, 91021), (28, 65015), (35, 52012), (70, 26006), (140, 13003)]