18318580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5689}}^1$

素因数の和:5728

約数の個数: 48

約数和(自身を含む): 45884160

約数和(自身を除く): 27565580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 5689, 11378, 22756, 28445, 39823, 56890, 79646, 113780, 130847, 159292, 199115, 261694, 398230, 523388, 654235, 796460, 915929, 1308470, 1831858, 2616940, 3663716, 4579645, 9159290, 18318580]

約数ペア:

[(1, 18318580), (2, 9159290), (4, 4579645), (5, 3663716), (7, 2616940), (10, 1831858), (14, 1308470), (20, 915929), (23, 796460), (28, 654235), (35, 523388), (46, 398230), (70, 261694), (92, 199115), (115, 159292), (140, 130847), (161, 113780), (230, 79646), (322, 56890), (460, 39823), (644, 28445), (805, 22756), (1610, 11378), (3220, 5689)]