18695020

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{6823}}^1$

素因数の和:6969

約数の個数: 24

約数和(自身を含む): 39551904

約数和(自身を除く): 20856884

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 6823, 13646, 27292, 34115, 68230, 136460, 934751, 1869502, 3739004, 4673755, 9347510, 18695020]

約数ペア:

[(1, 18695020), (2, 9347510), (4, 4673755), (5, 3739004), (10, 1869502), (20, 934751), (137, 136460), (274, 68230), (548, 34115), (685, 27292), (1370, 13646), (2740, 6823)]