287213766

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^3\times {\mathrm{997}}^1$

素因数の和:1066

約数の個数: 64

約数和(自身を含む): 693649920

約数和(自身を除く): 406436154

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 361, 399, 722, 798, 997, 1083, 1994, 2166, 2527, 2991, 5054, 5982, 6859, 6979, 7581, 13718, 13958, 15162, 18943, 20577, 20937, 37886, 41154, 41874, 48013, 56829, 96026, 113658, 132601, 144039, 265202, 288078, 359917, 397803, 719834, 795606, 1079751, 2159502, 2519419, 5038838, 6838423, 7558257, 13676846, 15116514, 20515269, 41030538, 47868961, 95737922, 143606883, 287213766]

約数ペア:

[(1, 287213766), (2, 143606883), (3, 95737922), (6, 47868961), (7, 41030538), (14, 20515269), (19, 15116514), (21, 13676846), (38, 7558257), (42, 6838423), (57, 5038838), (114, 2519419), (133, 2159502), (266, 1079751), (361, 795606), (399, 719834), (722, 397803), (798, 359917), (997, 288078), (1083, 265202), (1994, 144039), (2166, 132601), (2527, 113658), (2991, 96026), (5054, 56829), (5982, 48013), (6859, 41874), (6979, 41154), (7581, 37886), (13718, 20937), (13958, 20577), (15162, 18943)]