20867560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74527}}^1$

素因数の和:74545

約数の個数: 32

約数和(自身を含む): 53660160

約数和(自身を除く): 32792600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74527, 149054, 298108, 372635, 521689, 596216, 745270, 1043378, 1490540, 2086756, 2608445, 2981080, 4173512, 5216890, 10433780, 20867560]

約数ペア:

[(1, 20867560), (2, 10433780), (4, 5216890), (5, 4173512), (7, 2981080), (8, 2608445), (10, 2086756), (14, 1490540), (20, 1043378), (28, 745270), (35, 596216), (40, 521689), (56, 372635), (70, 298108), (140, 149054), (280, 74527)]