20772920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74189}}^1$

素因数の和:74207

約数の個数: 32

約数和(自身を含む): 53416800

約数和(自身を除く): 32643880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74189, 148378, 296756, 370945, 519323, 593512, 741890, 1038646, 1483780, 2077292, 2596615, 2967560, 4154584, 5193230, 10386460, 20772920]

約数ペア:

[(1, 20772920), (2, 10386460), (4, 5193230), (5, 4154584), (7, 2967560), (8, 2596615), (10, 2077292), (14, 1483780), (20, 1038646), (28, 741890), (35, 593512), (40, 519323), (56, 370945), (70, 296756), (140, 148378), (280, 74189)]