27665680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:536

約数の個数: 80

約数和(自身を含む): 74280960

約数和(自身を除く): 46615280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 254, 280, 389, 508, 560, 635, 778, 889, 1016, 1270, 1556, 1778, 1945, 2032, 2540, 2723, 3112, 3556, 3890, 4445, 5080, 5446, 6224, 7112, 7780, 8890, 10160, 10892, 13615, 14224, 15560, 17780, 21784, 27230, 31120, 35560, 43568, 49403, 54460, 71120, 98806, 108920, 197612, 217840, 247015, 345821, 395224, 494030, 691642, 790448, 988060, 1383284, 1729105, 1976120, 2766568, 3458210, 3952240, 5533136, 6916420, 13832840, 27665680]

約数ペア:

[(1, 27665680), (2, 13832840), (4, 6916420), (5, 5533136), (7, 3952240), (8, 3458210), (10, 2766568), (14, 1976120), (16, 1729105), (20, 1383284), (28, 988060), (35, 790448), (40, 691642), (56, 494030), (70, 395224), (80, 345821), (112, 247015), (127, 217840), (140, 197612), (254, 108920), (280, 98806), (389, 71120), (508, 54460), (560, 49403), (635, 43568), (778, 35560), (889, 31120), (1016, 27230), (1270, 21784), (1556, 17780), (1778, 15560), (1945, 14224), (2032, 13615), (2540, 10892), (2723, 10160), (3112, 8890), (3556, 7780), (3890, 7112), (4445, 6224), (5080, 5446)]