138568640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{61861}}^1$

素因数の和:61885

約数の個数: 56

約数和(自身を含む): 377110752

約数和(自身を除く): 238542112

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 61861, 123722, 247444, 309305, 433027, 494888, 618610, 866054, 989776, 1237220, 1732108, 1979552, 2165135, 2474440, 3464216, 3959104, 4330270, 4948880, 6928432, 8660540, 9897760, 13856864, 17321080, 19795520, 27713728, 34642160, 69284320, 138568640]

約数ペア:

[(1, 138568640), (2, 69284320), (4, 34642160), (5, 27713728), (7, 19795520), (8, 17321080), (10, 13856864), (14, 9897760), (16, 8660540), (20, 6928432), (28, 4948880), (32, 4330270), (35, 3959104), (40, 3464216), (56, 2474440), (64, 2165135), (70, 1979552), (80, 1732108), (112, 1237220), (140, 989776), (160, 866054), (224, 618610), (280, 494888), (320, 433027), (448, 309305), (560, 247444), (1120, 123722), (2240, 61861)]