2666840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:81

約数の個数: 96

約数和(自身を含む): 7182000

約数和(自身を除く): 4515160

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 29, 38, 40, 44, 55, 58, 76, 88, 95, 110, 116, 121, 145, 152, 190, 209, 220, 232, 242, 290, 319, 380, 418, 440, 484, 551, 580, 605, 638, 760, 836, 968, 1045, 1102, 1160, 1210, 1276, 1595, 1672, 2090, 2204, 2299, 2420, 2552, 2755, 3190, 3509, 4180, 4408, 4598, 4840, 5510, 6061, 6380, 7018, 8360, 9196, 11020, 11495, 12122, 12760, 14036, 17545, 18392, 22040, 22990, 24244, 28072, 30305, 35090, 45980, 48488, 60610, 66671, 70180, 91960, 121220, 133342, 140360, 242440, 266684, 333355, 533368, 666710, 1333420, 2666840]

約数ペア:

[(1, 2666840), (2, 1333420), (4, 666710), (5, 533368), (8, 333355), (10, 266684), (11, 242440), (19, 140360), (20, 133342), (22, 121220), (29, 91960), (38, 70180), (40, 66671), (44, 60610), (55, 48488), (58, 45980), (76, 35090), (88, 30305), (95, 28072), (110, 24244), (116, 22990), (121, 22040), (145, 18392), (152, 17545), (190, 14036), (209, 12760), (220, 12122), (232, 11495), (242, 11020), (290, 9196), (319, 8360), (380, 7018), (418, 6380), (440, 6061), (484, 5510), (551, 4840), (580, 4598), (605, 4408), (638, 4180), (760, 3509), (836, 3190), (968, 2755), (1045, 2552), (1102, 2420), (1160, 2299), (1210, 2204), (1276, 2090), (1595, 1672)]