72521200

素因数分解:

$2^4\times 5^2\times {\mathrm{181303}}^1$

素因数の和:181321

約数の個数: 30

約数和(自身を含む): 174233144

約数和(自身を除く): 101711944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 181303, 362606, 725212, 906515, 1450424, 1813030, 2900848, 3626060, 4532575, 7252120, 9065150, 14504240, 18130300, 36260600, 72521200]

約数ペア:

[(1, 72521200), (2, 36260600), (4, 18130300), (5, 14504240), (8, 9065150), (10, 7252120), (16, 4532575), (20, 3626060), (25, 2900848), (40, 1813030), (50, 1450424), (80, 906515), (100, 725212), (200, 362606), (400, 181303)]