25262440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{12889}}^1$

素因数の和:12914

約数の個数: 48

約数和(自身を含む): 66125700

約数和(自身を除く): 40863260

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 12889, 25778, 51556, 64445, 90223, 103112, 128890, 180446, 257780, 360892, 451115, 515560, 631561, 721784, 902230, 1263122, 1804460, 2526244, 3157805, 3608920, 5052488, 6315610, 12631220, 25262440]

約数ペア:

[(1, 25262440), (2, 12631220), (4, 6315610), (5, 5052488), (7, 3608920), (8, 3157805), (10, 2526244), (14, 1804460), (20, 1263122), (28, 902230), (35, 721784), (40, 631561), (49, 515560), (56, 451115), (70, 360892), (98, 257780), (140, 180446), (196, 128890), (245, 103112), (280, 90223), (392, 64445), (490, 51556), (980, 25778), (1960, 12889)]