55770140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{64849}}^1$

素因数の和:64901

約数の個数: 24

約数和(自身を含む): 119842800

約数和(自身を除く): 64072660

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 64849, 129698, 259396, 324245, 648490, 1296980, 2788507, 5577014, 11154028, 13942535, 27885070, 55770140]

約数ペア:

[(1, 55770140), (2, 27885070), (4, 13942535), (5, 11154028), (10, 5577014), (20, 2788507), (43, 1296980), (86, 648490), (172, 324245), (215, 259396), (430, 129698), (860, 64849)]