189661580

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{14657}}^1$

素因数の和:15313

約数の個数: 24

約数和(自身を含む): 398932128

約数和(自身を除く): 209270548

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 6470, 12940, 14657, 29314, 58628, 73285, 146570, 293140, 9483079, 18966158, 37932316, 47415395, 94830790, 189661580]

約数ペア:

[(1, 189661580), (2, 94830790), (4, 47415395), (5, 37932316), (10, 18966158), (20, 9483079), (647, 293140), (1294, 146570), (2588, 73285), (3235, 58628), (6470, 29314), (12940, 14657)]