254799974

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1077

約数の個数: 64

約数和(自身を含む): 479969280

約数和(自身を除く): 225169306

約数列:

[1, 2, 11, 13, 22, 26, 29, 31, 58, 62, 143, 286, 319, 341, 377, 403, 638, 682, 754, 806, 899, 991, 1798, 1982, 4147, 4433, 8294, 8866, 9889, 10901, 11687, 12883, 19778, 21802, 23374, 25766, 28739, 30721, 57478, 61442, 128557, 141713, 257114, 283426, 316129, 337931, 373607, 399373, 632258, 675862, 747214, 798746, 890909, 1781818, 4109677, 4393103, 8219354, 8786206, 9799999, 11581817, 19599998, 23163634, 127399987, 254799974]

約数ペア:

[(1, 254799974), (2, 127399987), (11, 23163634), (13, 19599998), (22, 11581817), (26, 9799999), (29, 8786206), (31, 8219354), (58, 4393103), (62, 4109677), (143, 1781818), (286, 890909), (319, 798746), (341, 747214), (377, 675862), (403, 632258), (638, 399373), (682, 373607), (754, 337931), (806, 316129), (899, 283426), (991, 257114), (1798, 141713), (1982, 128557), (4147, 61442), (4433, 57478), (8294, 30721), (8866, 28739), (9889, 25766), (10901, 23374), (11687, 21802), (12883, 19778)]