209225718

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{631}}^1$

素因数の和:774

約数の個数: 72

約数和(自身を含む): 496164240

約数和(自身を除く): 286938522

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 109, 117, 169, 218, 234, 327, 338, 507, 631, 654, 981, 1014, 1262, 1417, 1521, 1893, 1962, 2834, 3042, 3786, 4251, 5679, 8203, 8502, 11358, 12753, 16406, 18421, 24609, 25506, 36842, 49218, 55263, 68779, 73827, 106639, 110526, 137558, 147654, 165789, 206337, 213278, 319917, 331578, 412674, 619011, 639834, 894127, 959751, 1238022, 1788254, 1919502, 2682381, 5364762, 8047143, 11623651, 16094286, 23247302, 34870953, 69741906, 104612859, 209225718]

約数ペア:

[(1, 209225718), (2, 104612859), (3, 69741906), (6, 34870953), (9, 23247302), (13, 16094286), (18, 11623651), (26, 8047143), (39, 5364762), (78, 2682381), (109, 1919502), (117, 1788254), (169, 1238022), (218, 959751), (234, 894127), (327, 639834), (338, 619011), (507, 412674), (631, 331578), (654, 319917), (981, 213278), (1014, 206337), (1262, 165789), (1417, 147654), (1521, 137558), (1893, 110526), (1962, 106639), (2834, 73827), (3042, 68779), (3786, 55263), (4251, 49218), (5679, 36842), (8203, 25506), (8502, 24609), (11358, 18421), (12753, 16406)]