120720405

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{619079}}^1$

素因数の和:619100

約数の個数: 16

約数和(自身を含む): 208010880

約数和(自身を除く): 87290475

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 619079, 1857237, 3095395, 8048027, 9286185, 24144081, 40240135, 120720405]

約数ペア:

[(1, 120720405), (3, 40240135), (5, 24144081), (13, 9286185), (15, 8048027), (39, 3095395), (65, 1857237), (195, 619079)]