19946960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1193}}^1$

素因数の和:1236

約数の個数: 80

約数和(自身を含む): 53300160

約数和(自身を除く): 33353200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1193, 1520, 1672, 2090, 2386, 3344, 4180, 4772, 5965, 8360, 9544, 11930, 13123, 16720, 19088, 22667, 23860, 26246, 45334, 47720, 52492, 65615, 90668, 95440, 104984, 113335, 131230, 181336, 209968, 226670, 249337, 262460, 362672, 453340, 498674, 524920, 906680, 997348, 1049840, 1246685, 1813360, 1994696, 2493370, 3989392, 4986740, 9973480, 19946960]

約数ペア:

[(1, 19946960), (2, 9973480), (4, 4986740), (5, 3989392), (8, 2493370), (10, 1994696), (11, 1813360), (16, 1246685), (19, 1049840), (20, 997348), (22, 906680), (38, 524920), (40, 498674), (44, 453340), (55, 362672), (76, 262460), (80, 249337), (88, 226670), (95, 209968), (110, 181336), (152, 131230), (176, 113335), (190, 104984), (209, 95440), (220, 90668), (304, 65615), (380, 52492), (418, 47720), (440, 45334), (760, 26246), (836, 23860), (880, 22667), (1045, 19088), (1193, 16720), (1520, 13123), (1672, 11930), (2090, 9544), (2386, 8360), (3344, 5965), (4180, 4772)]