19516120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2887}}^1$

素因数の和:2924

約数の個数: 48

約数和(自身を含む): 47565360

約数和(自身を除く): 28049240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 2887, 3380, 5774, 6760, 11548, 14435, 23096, 28870, 37531, 57740, 75062, 115480, 150124, 187655, 300248, 375310, 487903, 750620, 975806, 1501240, 1951612, 2439515, 3903224, 4879030, 9758060, 19516120]

約数ペア:

[(1, 19516120), (2, 9758060), (4, 4879030), (5, 3903224), (8, 2439515), (10, 1951612), (13, 1501240), (20, 975806), (26, 750620), (40, 487903), (52, 375310), (65, 300248), (104, 187655), (130, 150124), (169, 115480), (260, 75062), (338, 57740), (520, 37531), (676, 28870), (845, 23096), (1352, 14435), (1690, 11548), (2887, 6760), (3380, 5774)]