19781670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{727}}^1\times {\mathrm{907}}^1$

素因数の和:1644

約数の個数: 32

約数和(自身を含む): 47593728

約数和(自身を除く): 27812058

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 727, 907, 1454, 1814, 2181, 2721, 3635, 4362, 4535, 5442, 7270, 9070, 10905, 13605, 21810, 27210, 659389, 1318778, 1978167, 3296945, 3956334, 6593890, 9890835, 19781670]

約数ペア:

[(1, 19781670), (2, 9890835), (3, 6593890), (5, 3956334), (6, 3296945), (10, 1978167), (15, 1318778), (30, 659389), (727, 27210), (907, 21810), (1454, 13605), (1814, 10905), (2181, 9070), (2721, 7270), (3635, 5442), (4362, 4535)]