171925640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{81097}}^1$

素因数の和:81161

約数の個数: 32

約数和(自身を含む): 394136280

約数和(自身を除く): 222210640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 81097, 162194, 324388, 405485, 648776, 810970, 1621940, 3243880, 4298141, 8596282, 17192564, 21490705, 34385128, 42981410, 85962820, 171925640]

約数ペア:

[(1, 171925640), (2, 85962820), (4, 42981410), (5, 34385128), (8, 21490705), (10, 17192564), (20, 8596282), (40, 4298141), (53, 3243880), (106, 1621940), (212, 810970), (265, 648776), (424, 405485), (530, 324388), (1060, 162194), (2120, 81097)]