21380200

素因数分解:

$2^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{2017}}^1$

素因数の和:2086

約数の個数: 48

約数和(自身を含む): 50671980

約数和(自身を除く): 29291780

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 200, 212, 265, 424, 530, 1060, 1325, 2017, 2120, 2650, 4034, 5300, 8068, 10085, 10600, 16136, 20170, 40340, 50425, 80680, 100850, 106901, 201700, 213802, 403400, 427604, 534505, 855208, 1069010, 2138020, 2672525, 4276040, 5345050, 10690100, 21380200]

約数ペア:

[(1, 21380200), (2, 10690100), (4, 5345050), (5, 4276040), (8, 2672525), (10, 2138020), (20, 1069010), (25, 855208), (40, 534505), (50, 427604), (53, 403400), (100, 213802), (106, 201700), (200, 106901), (212, 100850), (265, 80680), (424, 50425), (530, 40340), (1060, 20170), (1325, 16136), (2017, 10600), (2120, 10085), (2650, 8068), (4034, 5300)]