199942220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{4481}}^1$

素因数の和:4610

約数の個数: 48

約数和(自身を含む): 442749888

約数和(自身を除く): 242807668

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 97, 115, 194, 230, 388, 460, 485, 970, 1940, 2231, 4462, 4481, 8924, 8962, 11155, 17924, 22310, 22405, 44620, 44810, 89620, 103063, 206126, 412252, 434657, 515315, 869314, 1030630, 1738628, 2061260, 2173285, 4346570, 8693140, 9997111, 19994222, 39988444, 49985555, 99971110, 199942220]

約数ペア:

[(1, 199942220), (2, 99971110), (4, 49985555), (5, 39988444), (10, 19994222), (20, 9997111), (23, 8693140), (46, 4346570), (92, 2173285), (97, 2061260), (115, 1738628), (194, 1030630), (230, 869314), (388, 515315), (460, 434657), (485, 412252), (970, 206126), (1940, 103063), (2231, 89620), (4462, 44810), (4481, 44620), (8924, 22405), (8962, 22310), (11155, 17924)]