13720490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{28001}}^1$

素因数の和:28022

約数の個数: 24

約数和(自身を含む): 28730052

約数和(自身を除く): 15009562

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 28001, 56002, 140005, 196007, 280010, 392014, 980035, 1372049, 1960070, 2744098, 6860245, 13720490]

約数ペア:

[(1, 13720490), (2, 6860245), (5, 2744098), (7, 1960070), (10, 1372049), (14, 980035), (35, 392014), (49, 280010), (70, 196007), (98, 140005), (245, 56002), (490, 28001)]