39445420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2027}}^1$

素因数の和:2182

約数の個数: 48

約数和(自身を含む): 95397120

約数和(自身を除く): 55951700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2027, 2780, 3892, 4054, 4865, 8108, 9730, 10135, 14189, 19460, 20270, 28378, 40540, 56756, 70945, 141890, 281753, 283780, 563506, 1127012, 1408765, 1972271, 2817530, 3944542, 5635060, 7889084, 9861355, 19722710, 39445420]

約数ペア:

[(1, 39445420), (2, 19722710), (4, 9861355), (5, 7889084), (7, 5635060), (10, 3944542), (14, 2817530), (20, 1972271), (28, 1408765), (35, 1127012), (70, 563506), (139, 283780), (140, 281753), (278, 141890), (556, 70945), (695, 56756), (973, 40540), (1390, 28378), (1946, 20270), (2027, 19460), (2780, 14189), (3892, 10135), (4054, 9730), (4865, 8108)]