207781420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{134923}}^1$

素因数の和:134950

約数の個数: 48

約数和(自身を含む): 544013568

約数和(自身を除く): 336232148

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 134923, 269846, 539692, 674615, 944461, 1349230, 1484153, 1888922, 2698460, 2968306, 3777844, 4722305, 5936612, 7420765, 9444610, 10389071, 14841530, 18889220, 20778142, 29683060, 41556284, 51945355, 103890710, 207781420]

約数ペア:

[(1, 207781420), (2, 103890710), (4, 51945355), (5, 41556284), (7, 29683060), (10, 20778142), (11, 18889220), (14, 14841530), (20, 10389071), (22, 9444610), (28, 7420765), (35, 5936612), (44, 4722305), (55, 3777844), (70, 2968306), (77, 2698460), (110, 1888922), (140, 1484153), (154, 1349230), (220, 944461), (308, 674615), (385, 539692), (770, 269846), (1540, 134923)]