278400564

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:607

約数の個数: 120

約数和(自身を含む): 790644008

約数和(自身を除く): 512243444

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 157, 162, 234, 314, 324, 351, 421, 468, 471, 628, 702, 842, 942, 1053, 1263, 1404, 1413, 1684, 1884, 2041, 2106, 2526, 2826, 3789, 4082, 4212, 4239, 5052, 5473, 5652, 6123, 7578, 8164, 8478, 10946, 11367, 12246, 12717, 15156, 16419, 16956, 18369, 21892, 22734, 24492, 25434, 32838, 34101, 36738, 45468, 49257, 50868, 55107, 65676, 66097, 68202, 73476, 98514, 110214, 132194, 136404, 147771, 165321, 197028, 198291, 220428, 264388, 295542, 330642, 396582, 443313, 591084, 594873, 661284, 793164, 859261, 886626, 1189746, 1718522, 1773252, 1784619, 2379492, 2577783, 3437044, 3569238, 5155566, 5353857, 7138476, 7733349, 10311132, 10707714, 15466698, 21415428, 23200047, 30933396, 46400094, 69600141, 92800188, 139200282, 278400564]

約数ペア:

[(1, 278400564), (2, 139200282), (3, 92800188), (4, 69600141), (6, 46400094), (9, 30933396), (12, 23200047), (13, 21415428), (18, 15466698), (26, 10707714), (27, 10311132), (36, 7733349), (39, 7138476), (52, 5353857), (54, 5155566), (78, 3569238), (81, 3437044), (108, 2577783), (117, 2379492), (156, 1784619), (157, 1773252), (162, 1718522), (234, 1189746), (314, 886626), (324, 859261), (351, 793164), (421, 661284), (468, 594873), (471, 591084), (628, 443313), (702, 396582), (842, 330642), (942, 295542), (1053, 264388), (1263, 220428), (1404, 198291), (1413, 197028), (1684, 165321), (1884, 147771), (2041, 136404), (2106, 132194), (2526, 110214), (2826, 98514), (3789, 73476), (4082, 68202), (4212, 66097), (4239, 65676), (5052, 55107), (5473, 50868), (5652, 49257), (6123, 45468), (7578, 36738), (8164, 34101), (8478, 32838), (10946, 25434), (11367, 24492), (12246, 22734), (12717, 21892), (15156, 18369), (16419, 16956)]