278253008

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{823}}^1$

素因数の和:972

約数の個数: 80

約数和(自身を含む): 628995456

約数和(自身を除く): 350742448

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 113, 136, 176, 187, 226, 272, 374, 452, 748, 823, 904, 1243, 1496, 1646, 1808, 1921, 2486, 2992, 3292, 3842, 4972, 6584, 7684, 9053, 9944, 13168, 13991, 15368, 18106, 19888, 21131, 27982, 30736, 36212, 42262, 55964, 72424, 84524, 92999, 111928, 144848, 153901, 169048, 185998, 223856, 307802, 338096, 371996, 615604, 743992, 1022989, 1231208, 1487984, 1580983, 2045978, 2462416, 3161966, 4091956, 6323932, 8183912, 12647864, 16367824, 17390813, 25295728, 34781626, 69563252, 139126504, 278253008]

約数ペア:

[(1, 278253008), (2, 139126504), (4, 69563252), (8, 34781626), (11, 25295728), (16, 17390813), (17, 16367824), (22, 12647864), (34, 8183912), (44, 6323932), (68, 4091956), (88, 3161966), (113, 2462416), (136, 2045978), (176, 1580983), (187, 1487984), (226, 1231208), (272, 1022989), (374, 743992), (452, 615604), (748, 371996), (823, 338096), (904, 307802), (1243, 223856), (1496, 185998), (1646, 169048), (1808, 153901), (1921, 144848), (2486, 111928), (2992, 92999), (3292, 84524), (3842, 72424), (4972, 55964), (6584, 42262), (7684, 36212), (9053, 30736), (9944, 27982), (13168, 21131), (13991, 19888), (15368, 18106)]