205181520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{854923}}^1$

素因数の和:854939

約数の個数: 40

約数和(自身を含む): 636063456

約数和(自身を除く): 430881936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 854923, 1709846, 2564769, 3419692, 4274615, 5129538, 6839384, 8549230, 10259076, 12823845, 13678768, 17098460, 20518152, 25647690, 34196920, 41036304, 51295380, 68393840, 102590760, 205181520]

約数ペア:

[(1, 205181520), (2, 102590760), (3, 68393840), (4, 51295380), (5, 41036304), (6, 34196920), (8, 25647690), (10, 20518152), (12, 17098460), (15, 13678768), (16, 12823845), (20, 10259076), (24, 8549230), (30, 6839384), (40, 5129538), (48, 4274615), (60, 3419692), (80, 2564769), (120, 1709846), (240, 854923)]