260999998

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1153}}^1$

素因数の和:1241

約数の個数: 64

約数和(自身を含む): 505175040

約数和(自身を除く): 244175042

約数列:

[1, 2, 7, 14, 19, 23, 37, 38, 46, 74, 133, 161, 259, 266, 322, 437, 518, 703, 851, 874, 1153, 1406, 1702, 2306, 3059, 4921, 5957, 6118, 8071, 9842, 11914, 16142, 16169, 21907, 26519, 32338, 42661, 43814, 53038, 85322, 113183, 153349, 185633, 226366, 298627, 306698, 371266, 503861, 597254, 810559, 981203, 1007722, 1621118, 1962406, 3527027, 5673913, 6868421, 7054054, 11347826, 13736842, 18642857, 37285714, 130499999, 260999998]

約数ペア:

[(1, 260999998), (2, 130499999), (7, 37285714), (14, 18642857), (19, 13736842), (23, 11347826), (37, 7054054), (38, 6868421), (46, 5673913), (74, 3527027), (133, 1962406), (161, 1621118), (259, 1007722), (266, 981203), (322, 810559), (437, 597254), (518, 503861), (703, 371266), (851, 306698), (874, 298627), (1153, 226366), (1406, 185633), (1702, 153349), (2306, 113183), (3059, 85322), (4921, 53038), (5957, 43814), (6118, 42661), (8071, 32338), (9842, 26519), (11914, 21907), (16142, 16169)]