20111080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45707}}^1$

素因数の和:45729

約数の個数: 32

約数和(自身を含む): 49364640

約数和(自身を除く): 29253560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45707, 91414, 182828, 228535, 365656, 457070, 502777, 914140, 1005554, 1828280, 2011108, 2513885, 4022216, 5027770, 10055540, 20111080]

約数ペア:

[(1, 20111080), (2, 10055540), (4, 5027770), (5, 4022216), (8, 2513885), (10, 2011108), (11, 1828280), (20, 1005554), (22, 914140), (40, 502777), (44, 457070), (55, 365656), (88, 228535), (110, 182828), (220, 91414), (440, 45707)]