30506945

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{907}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 43278912

約数和(自身を除く): 12771967

約数列:

[1, 5, 7, 31, 35, 155, 217, 907, 961, 1085, 4535, 4805, 6349, 6727, 28117, 31745, 33635, 140585, 196819, 871627, 984095, 4358135, 6101389, 30506945]

約数ペア:

[(1, 30506945), (5, 6101389), (7, 4358135), (31, 984095), (35, 871627), (155, 196819), (217, 140585), (907, 33635), (961, 31745), (1085, 28117), (4535, 6727), (4805, 6349)]