31540490

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{22691}}^1$

素因数の和:22837

約数の個数: 16

約数和(自身を含む): 57183840

約数和(自身を除く): 25643350

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 22691, 45382, 113455, 226910, 3154049, 6308098, 15770245, 31540490]

約数ペア:

[(1, 31540490), (2, 15770245), (5, 6308098), (10, 3154049), (139, 226910), (278, 113455), (695, 45382), (1390, 22691)]