261720558

素因数分解:

$2^1\times 3^4\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{647}}^1$

素因数の和:899

約数の個数: 80

約数和(自身を含む): 643572864

約数和(自身を除く): 381852306

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 81, 99, 162, 198, 227, 297, 454, 594, 647, 681, 891, 1294, 1362, 1782, 1941, 2043, 2497, 3882, 4086, 4994, 5823, 6129, 7117, 7491, 11646, 12258, 14234, 14982, 17469, 18387, 21351, 22473, 34938, 36774, 42702, 44946, 52407, 64053, 67419, 104814, 128106, 134838, 146869, 192159, 202257, 293738, 384318, 404514, 440607, 576477, 881214, 1152954, 1321821, 1615559, 2643642, 3231118, 3965463, 4846677, 7930926, 9693354, 11896389, 14540031, 23792778, 29080062, 43620093, 87240186, 130860279, 261720558]

約数ペア:

[(1, 261720558), (2, 130860279), (3, 87240186), (6, 43620093), (9, 29080062), (11, 23792778), (18, 14540031), (22, 11896389), (27, 9693354), (33, 7930926), (54, 4846677), (66, 3965463), (81, 3231118), (99, 2643642), (162, 1615559), (198, 1321821), (227, 1152954), (297, 881214), (454, 576477), (594, 440607), (647, 404514), (681, 384318), (891, 293738), (1294, 202257), (1362, 192159), (1782, 146869), (1941, 134838), (2043, 128106), (2497, 104814), (3882, 67419), (4086, 64053), (4994, 52407), (5823, 44946), (6129, 42702), (7117, 36774), (7491, 34938), (11646, 22473), (12258, 21351), (14234, 18387), (14982, 17469)]