18546290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{4999}}^1$

素因数の和:5066

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 20333710

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 4999, 9998, 24995, 34993, 49990, 69986, 174965, 264947, 349930, 529894, 1324735, 1854629, 2649470, 3709258, 9273145, 18546290]

約数ペア:

[(1, 18546290), (2, 9273145), (5, 3709258), (7, 2649470), (10, 1854629), (14, 1324735), (35, 529894), (53, 349930), (70, 264947), (106, 174965), (265, 69986), (371, 49990), (530, 34993), (742, 24995), (1855, 9998), (3710, 4999)]