260999478

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^2$

素因数の和:322

約数の個数: 72

約数和(自身を含む): 608662080

約数和(自身を除く): 347662602

約数列:

[1, 2, 3, 6, 9, 18, 29, 31, 58, 62, 87, 93, 127, 174, 186, 254, 261, 279, 381, 522, 558, 762, 899, 1143, 1798, 2286, 2697, 3683, 3937, 5394, 7366, 7874, 8091, 11049, 11811, 16129, 16182, 22098, 23622, 32258, 33147, 35433, 48387, 66294, 70866, 96774, 114173, 145161, 228346, 290322, 342519, 467741, 499999, 685038, 935482, 999998, 1027557, 1403223, 1499997, 2055114, 2806446, 2999994, 4209669, 4499991, 8419338, 8999982, 14499971, 28999942, 43499913, 86999826, 130499739, 260999478]

約数ペア:

[(1, 260999478), (2, 130499739), (3, 86999826), (6, 43499913), (9, 28999942), (18, 14499971), (29, 8999982), (31, 8419338), (58, 4499991), (62, 4209669), (87, 2999994), (93, 2806446), (127, 2055114), (174, 1499997), (186, 1403223), (254, 1027557), (261, 999998), (279, 935482), (381, 685038), (522, 499999), (558, 467741), (762, 342519), (899, 290322), (1143, 228346), (1798, 145161), (2286, 114173), (2697, 96774), (3683, 70866), (3937, 66294), (5394, 48387), (7366, 35433), (7874, 33147), (8091, 32258), (11049, 23622), (11811, 22098), (16129, 16182)]