51561200

素因数分解:

$2^4\times 5^2\times {\mathrm{128903}}^1$

素因数の和:128921

約数の個数: 30

約数和(自身を含む): 123876744

約数和(自身を除く): 72315544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128903, 257806, 515612, 644515, 1031224, 1289030, 2062448, 2578060, 3222575, 5156120, 6445150, 10312240, 12890300, 25780600, 51561200]

約数ペア:

[(1, 51561200), (2, 25780600), (4, 12890300), (5, 10312240), (8, 6445150), (10, 5156120), (16, 3222575), (20, 2578060), (25, 2062448), (40, 1289030), (50, 1031224), (80, 644515), (100, 515612), (200, 257806), (400, 128903)]