19771360

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:288

約数の個数: 96

約数和(自身を含む): 54190080

約数和(自身を除く): 34418720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 127, 139, 140, 160, 224, 254, 278, 280, 508, 556, 560, 635, 695, 889, 973, 1016, 1112, 1120, 1270, 1390, 1778, 1946, 2032, 2224, 2540, 2780, 3556, 3892, 4064, 4445, 4448, 4865, 5080, 5560, 7112, 7784, 8890, 9730, 10160, 11120, 14224, 15568, 17653, 17780, 19460, 20320, 22240, 28448, 31136, 35306, 35560, 38920, 70612, 71120, 77840, 88265, 123571, 141224, 142240, 155680, 176530, 247142, 282448, 353060, 494284, 564896, 617855, 706120, 988568, 1235710, 1412240, 1977136, 2471420, 2824480, 3954272, 4942840, 9885680, 19771360]

約数ペア:

[(1, 19771360), (2, 9885680), (4, 4942840), (5, 3954272), (7, 2824480), (8, 2471420), (10, 1977136), (14, 1412240), (16, 1235710), (20, 988568), (28, 706120), (32, 617855), (35, 564896), (40, 494284), (56, 353060), (70, 282448), (80, 247142), (112, 176530), (127, 155680), (139, 142240), (140, 141224), (160, 123571), (224, 88265), (254, 77840), (278, 71120), (280, 70612), (508, 38920), (556, 35560), (560, 35306), (635, 31136), (695, 28448), (889, 22240), (973, 20320), (1016, 19460), (1112, 17780), (1120, 17653), (1270, 15568), (1390, 14224), (1778, 11120), (1946, 10160), (2032, 9730), (2224, 8890), (2540, 7784), (2780, 7112), (3556, 5560), (3892, 5080), (4064, 4865), (4445, 4448)]