201880840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{721003}}^1$

素因数の和:721021

約数の個数: 32

約数和(自身を含む): 519122880

約数和(自身を除く): 317242040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 721003, 1442006, 2884012, 3605015, 5047021, 5768024, 7210030, 10094042, 14420060, 20188084, 25235105, 28840120, 40376168, 50470210, 100940420, 201880840]

約数ペア:

[(1, 201880840), (2, 100940420), (4, 50470210), (5, 40376168), (7, 28840120), (8, 25235105), (10, 20188084), (14, 14420060), (20, 10094042), (28, 7210030), (35, 5768024), (40, 5047021), (56, 3605015), (70, 2884012), (140, 1442006), (280, 721003)]