261342642

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1\times {\mathrm{181}}^1$

素因数の和:495

約数の個数: 64

約数和(自身を含む): 581188608

約数和(自身を除く): 319845966

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 131, 167, 181, 262, 334, 362, 393, 501, 543, 786, 1002, 1086, 1441, 1837, 1991, 2882, 3674, 3982, 4323, 5511, 5973, 8646, 11022, 11946, 21877, 23711, 30227, 43754, 47422, 60454, 65631, 71133, 90681, 131262, 142266, 181362, 240647, 260821, 332497, 481294, 521642, 664994, 721941, 782463, 997491, 1443882, 1564926, 1994982, 3959737, 7919474, 11879211, 23758422, 43557107, 87114214, 130671321, 261342642]

約数ペア:

[(1, 261342642), (2, 130671321), (3, 87114214), (6, 43557107), (11, 23758422), (22, 11879211), (33, 7919474), (66, 3959737), (131, 1994982), (167, 1564926), (181, 1443882), (262, 997491), (334, 782463), (362, 721941), (393, 664994), (501, 521642), (543, 481294), (786, 332497), (1002, 260821), (1086, 240647), (1441, 181362), (1837, 142266), (1991, 131262), (2882, 90681), (3674, 71133), (3982, 65631), (4323, 60454), (5511, 47422), (5973, 43754), (8646, 30227), (11022, 23711), (11946, 21877)]