2021025800

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{235003}}^1$

素因数の和:235062

約数の個数: 48

約数和(自身を含む): 4808181840

約数和(自身を除く): 2787156040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 4300, 8600, 235003, 470006, 940012, 1175015, 1880024, 2350030, 4700060, 5875075, 9400120, 10105129, 11750150, 20210258, 23500300, 40420516, 47000600, 50525645, 80841032, 101051290, 202102580, 252628225, 404205160, 505256450, 1010512900, 2021025800]

約数ペア:

[(1, 2021025800), (2, 1010512900), (4, 505256450), (5, 404205160), (8, 252628225), (10, 202102580), (20, 101051290), (25, 80841032), (40, 50525645), (43, 47000600), (50, 40420516), (86, 23500300), (100, 20210258), (172, 11750150), (200, 10105129), (215, 9400120), (344, 5875075), (430, 4700060), (860, 2350030), (1075, 1880024), (1720, 1175015), (2150, 940012), (4300, 470006), (8600, 235003)]