19511660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139369}}^1$

素因数の和:139385

約数の個数: 24

約数和(自身を含む): 46828320

約数和(自身を除く): 27316660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 139369, 278738, 557476, 696845, 975583, 1393690, 1951166, 2787380, 3902332, 4877915, 9755830, 19511660]

約数ペア:

[(1, 19511660), (2, 9755830), (4, 4877915), (5, 3902332), (7, 2787380), (10, 1951166), (14, 1393690), (20, 975583), (28, 696845), (35, 557476), (70, 278738), (140, 139369)]