1200400

素因数分解:

$2^4\times 5^2\times {\mathrm{3001}}^1$

素因数の和:3019

約数の個数: 30

約数和(自身を含む): 2884922

約数和(自身を除く): 1684522

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 3001, 6002, 12004, 15005, 24008, 30010, 48016, 60020, 75025, 120040, 150050, 240080, 300100, 600200, 1200400]

約数ペア:

[(1, 1200400), (2, 600200), (4, 300100), (5, 240080), (8, 150050), (10, 120040), (16, 75025), (20, 60020), (25, 48016), (40, 30010), (50, 24008), (80, 15005), (100, 12004), (200, 6002), (400, 3001)]