78832540

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{28771}}^1$

素因数の和:28917

約数の個数: 24

約数和(自身を含む): 166762512

約数和(自身を除く): 87929972

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 28771, 57542, 115084, 143855, 287710, 575420, 3941627, 7883254, 15766508, 19708135, 39416270, 78832540]

約数ペア:

[(1, 78832540), (2, 39416270), (4, 19708135), (5, 15766508), (10, 7883254), (20, 3941627), (137, 575420), (274, 287710), (548, 143855), (685, 115084), (1370, 57542), (2740, 28771)]