81566518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{601}}^1$

素因数の和:844

約数の個数: 32

約数和(自身を含む): 138700800

約数和(自身を除く): 57134282

約数列:

[1, 2, 11, 22, 31, 62, 199, 341, 398, 601, 682, 1202, 2189, 4378, 6169, 6611, 12338, 13222, 18631, 37262, 67859, 119599, 135718, 204941, 239198, 409882, 1315589, 2631178, 3707569, 7415138, 40783259, 81566518]

約数ペア:

[(1, 81566518), (2, 40783259), (11, 7415138), (22, 3707569), (31, 2631178), (62, 1315589), (199, 409882), (341, 239198), (398, 204941), (601, 135718), (682, 119599), (1202, 67859), (2189, 37262), (4378, 18631), (6169, 13222), (6611, 12338)]