215000840

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{42323}}^1$

素因数の和:42461

約数の個数: 32

約数和(自身を含む): 487572480

約数和(自身を除く): 272571640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 42323, 84646, 169292, 211615, 338584, 423230, 846460, 1692920, 5375021, 10750042, 21500084, 26875105, 43000168, 53750210, 107500420, 215000840]

約数ペア:

[(1, 215000840), (2, 107500420), (4, 53750210), (5, 43000168), (8, 26875105), (10, 21500084), (20, 10750042), (40, 5375021), (127, 1692920), (254, 846460), (508, 423230), (635, 338584), (1016, 211615), (1270, 169292), (2540, 84646), (5080, 42323)]