661281840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{306149}}^1$

素因数の和:306171

約数の個数: 80

約数和(自身を含む): 2277756000

約数和(自身を除く): 1616474160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 306149, 612298, 918447, 1224596, 1530745, 1836894, 2449192, 2755341, 3061490, 3673788, 4592235, 4898384, 5510682, 6122980, 7347576, 8266023, 9184470, 11021364, 12245960, 13776705, 14695152, 16532046, 18368940, 22042728, 24491920, 27553410, 33064092, 36737880, 41330115, 44085456, 55106820, 66128184, 73475760, 82660230, 110213640, 132256368, 165320460, 220427280, 330640920, 661281840]

約数ペア:

[(1, 661281840), (2, 330640920), (3, 220427280), (4, 165320460), (5, 132256368), (6, 110213640), (8, 82660230), (9, 73475760), (10, 66128184), (12, 55106820), (15, 44085456), (16, 41330115), (18, 36737880), (20, 33064092), (24, 27553410), (27, 24491920), (30, 22042728), (36, 18368940), (40, 16532046), (45, 14695152), (48, 13776705), (54, 12245960), (60, 11021364), (72, 9184470), (80, 8266023), (90, 7347576), (108, 6122980), (120, 5510682), (135, 4898384), (144, 4592235), (180, 3673788), (216, 3061490), (240, 2755341), (270, 2449192), (360, 1836894), (432, 1530745), (540, 1224596), (720, 918447), (1080, 612298), (2160, 306149)]