21884000

素因数分解:

$2^5\times 5^3\times {\mathrm{5471}}^1$

素因数の和:5496

約数の個数: 48

約数和(自身を含む): 53778816

約数和(自身を除く): 31894816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 5471, 10942, 21884, 27355, 43768, 54710, 87536, 109420, 136775, 175072, 218840, 273550, 437680, 547100, 683875, 875360, 1094200, 1367750, 2188400, 2735500, 4376800, 5471000, 10942000, 21884000]

約数ペア:

[(1, 21884000), (2, 10942000), (4, 5471000), (5, 4376800), (8, 2735500), (10, 2188400), (16, 1367750), (20, 1094200), (25, 875360), (32, 683875), (40, 547100), (50, 437680), (80, 273550), (100, 218840), (125, 175072), (160, 136775), (200, 109420), (250, 87536), (400, 54710), (500, 43768), (800, 27355), (1000, 21884), (2000, 10942), (4000, 5471)]