8820400

素因数分解:

$2^4\times 5^2\times {\mathrm{22051}}^1$

素因数の和:22069

約数の個数: 30

約数和(自身を含む): 21191972

約数和(自身を除く): 12371572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 22051, 44102, 88204, 110255, 176408, 220510, 352816, 441020, 551275, 882040, 1102550, 1764080, 2205100, 4410200, 8820400]

約数ペア:

[(1, 8820400), (2, 4410200), (4, 2205100), (5, 1764080), (8, 1102550), (10, 882040), (16, 551275), (20, 441020), (25, 352816), (40, 220510), (50, 176408), (80, 110255), (100, 88204), (200, 44102), (400, 22051)]