2787148

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 72

約数和(自身を含む): 6558720

約数和(自身を除く): 3771572

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 31, 38, 52, 62, 76, 91, 124, 133, 169, 182, 217, 247, 266, 338, 364, 403, 434, 494, 532, 589, 676, 806, 868, 988, 1178, 1183, 1612, 1729, 2356, 2366, 2821, 3211, 3458, 4123, 4732, 5239, 5642, 6422, 6916, 7657, 8246, 10478, 11284, 12844, 15314, 16492, 20956, 22477, 30628, 36673, 44954, 53599, 73346, 89908, 99541, 107198, 146692, 199082, 214396, 398164, 696787, 1393574, 2787148]

約数ペア:

[(1, 2787148), (2, 1393574), (4, 696787), (7, 398164), (13, 214396), (14, 199082), (19, 146692), (26, 107198), (28, 99541), (31, 89908), (38, 73346), (52, 53599), (62, 44954), (76, 36673), (91, 30628), (124, 22477), (133, 20956), (169, 16492), (182, 15314), (217, 12844), (247, 11284), (266, 10478), (338, 8246), (364, 7657), (403, 6916), (434, 6422), (494, 5642), (532, 5239), (589, 4732), (676, 4123), (806, 3458), (868, 3211), (988, 2821), (1178, 2366), (1183, 2356), (1612, 1729)]