38862920

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1511}}^1$

素因数の和:2165

約数の個数: 32

約数和(自身を含む): 87635520

約数和(自身を除く): 48772600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 1511, 2572, 3022, 3215, 5144, 6044, 6430, 7555, 12088, 12860, 15110, 25720, 30220, 60440, 971573, 1943146, 3886292, 4857865, 7772584, 9715730, 19431460, 38862920]

約数ペア:

[(1, 38862920), (2, 19431460), (4, 9715730), (5, 7772584), (8, 4857865), (10, 3886292), (20, 1943146), (40, 971573), (643, 60440), (1286, 30220), (1511, 25720), (2572, 15110), (3022, 12860), (3215, 12088), (5144, 7555), (6044, 6430)]