18800530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{641}}^1$

素因数の和:1074

約数の個数: 32

約数和(自身を含む): 38828160

約数和(自身を除く): 20027630

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 419, 641, 838, 1282, 2095, 2933, 3205, 4190, 4487, 5866, 6410, 8974, 14665, 22435, 29330, 44870, 268579, 537158, 1342895, 1880053, 2685790, 3760106, 9400265, 18800530]

約数ペア:

[(1, 18800530), (2, 9400265), (5, 3760106), (7, 2685790), (10, 1880053), (14, 1342895), (35, 537158), (70, 268579), (419, 44870), (641, 29330), (838, 22435), (1282, 14665), (2095, 8974), (2933, 6410), (3205, 5866), (4190, 4487)]