261057020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1864693}}^1$

素因数の和:1864709

約数の個数: 24

約数和(自身を含む): 626537184

約数和(自身を除く): 365480164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1864693, 3729386, 7458772, 9323465, 13052851, 18646930, 26105702, 37293860, 52211404, 65264255, 130528510, 261057020]

約数ペア:

[(1, 261057020), (2, 130528510), (4, 65264255), (5, 52211404), (7, 37293860), (10, 26105702), (14, 18646930), (20, 13052851), (28, 9323465), (35, 7458772), (70, 3729386), (140, 1864693)]