5200400

素因数分解:

$2^4\times 5^2\times {\mathrm{13001}}^1$

素因数の和:13019

約数の個数: 30

約数和(自身を含む): 12494922

約数和(自身を除く): 7294522

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 13001, 26002, 52004, 65005, 104008, 130010, 208016, 260020, 325025, 520040, 650050, 1040080, 1300100, 2600200, 5200400]

約数ペア:

[(1, 5200400), (2, 2600200), (4, 1300100), (5, 1040080), (8, 650050), (10, 520040), (16, 325025), (20, 260020), (25, 208016), (40, 130010), (50, 104008), (80, 65005), (100, 52004), (200, 26002), (400, 13001)]