2778160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1$

素因数の和:83

約数の個数: 120

約数和(自身を含む): 8311968

約数和(自身を除く): 5533808

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 41, 44, 55, 56, 70, 77, 80, 82, 88, 110, 112, 121, 140, 154, 164, 176, 205, 220, 242, 280, 287, 308, 328, 385, 410, 440, 451, 484, 560, 574, 605, 616, 656, 770, 820, 847, 880, 902, 968, 1148, 1210, 1232, 1435, 1540, 1640, 1694, 1804, 1936, 2255, 2296, 2420, 2870, 3080, 3157, 3280, 3388, 3608, 4235, 4510, 4592, 4840, 4961, 5740, 6160, 6314, 6776, 7216, 8470, 9020, 9680, 9922, 11480, 12628, 13552, 15785, 16940, 18040, 19844, 22960, 24805, 25256, 31570, 33880, 34727, 36080, 39688, 49610, 50512, 63140, 67760, 69454, 79376, 99220, 126280, 138908, 173635, 198440, 252560, 277816, 347270, 396880, 555632, 694540, 1389080, 2778160]

約数ペア:

[(1, 2778160), (2, 1389080), (4, 694540), (5, 555632), (7, 396880), (8, 347270), (10, 277816), (11, 252560), (14, 198440), (16, 173635), (20, 138908), (22, 126280), (28, 99220), (35, 79376), (40, 69454), (41, 67760), (44, 63140), (55, 50512), (56, 49610), (70, 39688), (77, 36080), (80, 34727), (82, 33880), (88, 31570), (110, 25256), (112, 24805), (121, 22960), (140, 19844), (154, 18040), (164, 16940), (176, 15785), (205, 13552), (220, 12628), (242, 11480), (280, 9922), (287, 9680), (308, 9020), (328, 8470), (385, 7216), (410, 6776), (440, 6314), (451, 6160), (484, 5740), (560, 4961), (574, 4840), (605, 4592), (616, 4510), (656, 4235), (770, 3608), (820, 3388), (847, 3280), (880, 3157), (902, 3080), (968, 2870), (1148, 2420), (1210, 2296), (1232, 2255), (1435, 1936), (1540, 1804), (1640, 1694)]