20020400

素因数分解:

$2^4\times 5^2\times {\mathrm{50051}}^1$

素因数の和:50069

約数の個数: 30

約数和(自身を含む): 48099972

約数和(自身を除く): 28079572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 50051, 100102, 200204, 250255, 400408, 500510, 800816, 1001020, 1251275, 2002040, 2502550, 4004080, 5005100, 10010200, 20020400]

約数ペア:

[(1, 20020400), (2, 10010200), (4, 5005100), (5, 4004080), (8, 2502550), (10, 2002040), (16, 1251275), (20, 1001020), (25, 800816), (40, 500510), (50, 400408), (80, 250255), (100, 200204), (200, 100102), (400, 50051)]