55789640

素因数分解:

$2^3\times 5^1\times {\mathrm{911}}^1\times {\mathrm{1531}}^1$

素因数の和:2453

約数の個数: 32

約数和(自身を含む): 125746560

約数和(自身を除く): 69956920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 911, 1531, 1822, 3062, 3644, 4555, 6124, 7288, 7655, 9110, 12248, 15310, 18220, 30620, 36440, 61240, 1394741, 2789482, 5578964, 6973705, 11157928, 13947410, 27894820, 55789640]

約数ペア:

[(1, 55789640), (2, 27894820), (4, 13947410), (5, 11157928), (8, 6973705), (10, 5578964), (20, 2789482), (40, 1394741), (911, 61240), (1531, 36440), (1822, 30620), (3062, 18220), (3644, 15310), (4555, 12248), (6124, 9110), (7288, 7655)]