19875140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{271}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 44325120

約数和(自身を除く): 24449980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 193, 271, 380, 386, 542, 772, 965, 1084, 1355, 1930, 2710, 3667, 3860, 5149, 5420, 7334, 10298, 14668, 18335, 20596, 25745, 36670, 51490, 52303, 73340, 102980, 104606, 209212, 261515, 523030, 993757, 1046060, 1987514, 3975028, 4968785, 9937570, 19875140]

約数ペア:

[(1, 19875140), (2, 9937570), (4, 4968785), (5, 3975028), (10, 1987514), (19, 1046060), (20, 993757), (38, 523030), (76, 261515), (95, 209212), (190, 104606), (193, 102980), (271, 73340), (380, 52303), (386, 51490), (542, 36670), (772, 25745), (965, 20596), (1084, 18335), (1355, 14668), (1930, 10298), (2710, 7334), (3667, 5420), (3860, 5149)]