257616140

素因数分解:

$2^2\times 5^1\times {\mathrm{2281}}^1\times {\mathrm{5647}}^1$

素因数の和:7937

約数の個数: 24

約数和(自身を含む): 541326912

約数和(自身を除く): 283710772

約数列:

[1, 2, 4, 5, 10, 20, 2281, 4562, 5647, 9124, 11294, 11405, 22588, 22810, 28235, 45620, 56470, 112940, 12880807, 25761614, 51523228, 64404035, 128808070, 257616140]

約数ペア:

[(1, 257616140), (2, 128808070), (4, 64404035), (5, 51523228), (10, 25761614), (20, 12880807), (2281, 112940), (4562, 56470), (5647, 45620), (9124, 28235), (11294, 22810), (11405, 22588)]