80642488

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{643}}^1$

素因数の和:967

約数の個数: 32

約数和(自身を含む): 154521360

約数和(自身を除く): 73878872

約数列:

[1, 2, 4, 8, 61, 122, 244, 257, 488, 514, 643, 1028, 1286, 2056, 2572, 5144, 15677, 31354, 39223, 62708, 78446, 125416, 156892, 165251, 313784, 330502, 661004, 1322008, 10080311, 20160622, 40321244, 80642488]

約数ペア:

[(1, 80642488), (2, 40321244), (4, 20160622), (8, 10080311), (61, 1322008), (122, 661004), (244, 330502), (257, 313784), (488, 165251), (514, 156892), (643, 125416), (1028, 78446), (1286, 62708), (2056, 39223), (2572, 31354), (5144, 15677)]