201553960

素因数分解:

$2^3\times 5^1\times {\mathrm{5038849}}^1$

素因数の和:5038860

約数の個数: 16

約数和(自身を含む): 453496500

約数和(自身を除く): 251942540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5038849, 10077698, 20155396, 25194245, 40310792, 50388490, 100776980, 201553960]

約数ペア:

[(1, 201553960), (2, 100776980), (4, 50388490), (5, 40310792), (8, 25194245), (10, 20155396), (20, 10077698), (40, 5038849)]