155260720

素因数分解:

$2^4\times 5^1\times {\mathrm{1940759}}^1$

素因数の和:1940772

約数の個数: 20

約数和(自身を含む): 360981360

約数和(自身を除く): 205720640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1940759, 3881518, 7763036, 9703795, 15526072, 19407590, 31052144, 38815180, 77630360, 155260720]

約数ペア:

[(1, 155260720), (2, 77630360), (4, 38815180), (5, 31052144), (8, 19407590), (10, 15526072), (16, 9703795), (20, 7763036), (40, 3881518), (80, 1940759)]