19866800

素因数分解:

$2^4\times 5^2\times {\mathrm{49667}}^1$

素因数の和:49685

約数の個数: 30

約数和(自身を含む): 47730948

約数和(自身を除く): 27864148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49667, 99334, 198668, 248335, 397336, 496670, 794672, 993340, 1241675, 1986680, 2483350, 3973360, 4966700, 9933400, 19866800]

約数ペア:

[(1, 19866800), (2, 9933400), (4, 4966700), (5, 3973360), (8, 2483350), (10, 1986680), (16, 1241675), (20, 993340), (25, 794672), (40, 496670), (50, 397336), (80, 248335), (100, 198668), (200, 99334), (400, 49667)]