201580040

素因数分解:

$2^3\times 5^1\times {\mathrm{5039501}}^1$

素因数の和:5039512

約数の個数: 16

約数和(自身を含む): 453555180

約数和(自身を除く): 251975140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5039501, 10079002, 20158004, 25197505, 40316008, 50395010, 100790020, 201580040]

約数ペア:

[(1, 201580040), (2, 100790020), (4, 50395010), (5, 40316008), (8, 25197505), (10, 20158004), (20, 10079002), (40, 5039501)]