123940400

素因数分解:

$2^4\times 5^2\times {\mathrm{309851}}^1$

素因数の和:309869

約数の個数: 30

約数和(自身を含む): 297767772

約数和(自身を除く): 173827372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 309851, 619702, 1239404, 1549255, 2478808, 3098510, 4957616, 6197020, 7746275, 12394040, 15492550, 24788080, 30985100, 61970200, 123940400]

約数ペア:

[(1, 123940400), (2, 61970200), (4, 30985100), (5, 24788080), (8, 15492550), (10, 12394040), (16, 7746275), (20, 6197020), (25, 4957616), (40, 3098510), (50, 2478808), (80, 1549255), (100, 1239404), (200, 619702), (400, 309851)]