55780280

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{13807}}^1$

素因数の和:13919

約数の個数: 32

約数和(自身を含む): 126757440

約数和(自身を除く): 70977160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 13807, 27614, 55228, 69035, 110456, 138070, 276140, 552280, 1394507, 2789014, 5578028, 6972535, 11156056, 13945070, 27890140, 55780280]

約数ペア:

[(1, 55780280), (2, 27890140), (4, 13945070), (5, 11156056), (8, 6972535), (10, 5578028), (20, 2789014), (40, 1394507), (101, 552280), (202, 276140), (404, 138070), (505, 110456), (808, 69035), (1010, 55228), (2020, 27614), (4040, 13807)]