151122220

素因数分解:

$2^2\times 5^1\times {\mathrm{2081}}^1\times {\mathrm{3631}}^1$

素因数の和:5721

約数の個数: 24

約数和(自身を含む): 317596608

約数和(自身を除く): 166474388

約数列:

[1, 2, 4, 5, 10, 20, 2081, 3631, 4162, 7262, 8324, 10405, 14524, 18155, 20810, 36310, 41620, 72620, 7556111, 15112222, 30224444, 37780555, 75561110, 151122220]

約数ペア:

[(1, 151122220), (2, 75561110), (4, 37780555), (5, 30224444), (10, 15112222), (20, 7556111), (2081, 72620), (3631, 41620), (4162, 36310), (7262, 20810), (8324, 18155), (10405, 14524)]