208884400

素因数分解:

$2^4\times 5^2\times {\mathrm{522211}}^1$

素因数の和:522229

約数の個数: 30

約数和(自身を含む): 501845732

約数和(自身を除く): 292961332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 522211, 1044422, 2088844, 2611055, 4177688, 5222110, 8355376, 10444220, 13055275, 20888440, 26110550, 41776880, 52221100, 104442200, 208884400]

約数ペア:

[(1, 208884400), (2, 104442200), (4, 52221100), (5, 41776880), (8, 26110550), (10, 20888440), (16, 13055275), (20, 10444220), (25, 8355376), (40, 5222110), (50, 4177688), (80, 2611055), (100, 2088844), (200, 1044422), (400, 522211)]