19530140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139501}}^1$

素因数の和:139517

約数の個数: 24

約数和(自身を含む): 46872672

約数和(自身を除く): 27342532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 139501, 279002, 558004, 697505, 976507, 1395010, 1953014, 2790020, 3906028, 4882535, 9765070, 19530140]

約数ペア:

[(1, 19530140), (2, 9765070), (4, 4882535), (5, 3906028), (7, 2790020), (10, 1953014), (14, 1395010), (20, 976507), (28, 697505), (35, 558004), (70, 279002), (140, 139501)]