28777294

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 57480192

約数和(自身を除く): 28702898

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 71, 91, 119, 131, 142, 182, 221, 238, 262, 442, 497, 917, 923, 994, 1207, 1547, 1703, 1834, 1846, 2227, 2414, 3094, 3406, 4454, 6461, 8449, 9301, 11921, 12922, 15589, 15691, 16898, 18602, 23842, 28951, 31178, 31382, 57902, 65107, 109837, 120913, 130214, 158117, 202657, 219674, 241826, 316234, 405314, 846391, 1106819, 1692782, 2055521, 2213638, 4111042, 14388647, 28777294]

約数ペア:

[(1, 28777294), (2, 14388647), (7, 4111042), (13, 2213638), (14, 2055521), (17, 1692782), (26, 1106819), (34, 846391), (71, 405314), (91, 316234), (119, 241826), (131, 219674), (142, 202657), (182, 158117), (221, 130214), (238, 120913), (262, 109837), (442, 65107), (497, 57902), (917, 31382), (923, 31178), (994, 28951), (1207, 23842), (1547, 18602), (1703, 16898), (1834, 15691), (1846, 15589), (2227, 12922), (2414, 11921), (3094, 9301), (3406, 8449), (4454, 6461)]