28940236

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1381}}^1$

素因数の和:1442

約数の個数: 36

約数和(自身を含む): 56650944

約数和(自身を除く): 27710708

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 169, 338, 403, 676, 806, 1381, 1612, 2762, 5239, 5524, 10478, 17953, 20956, 35906, 42811, 71812, 85622, 171244, 233389, 466778, 556543, 933556, 1113086, 2226172, 7235059, 14470118, 28940236]

約数ペア:

[(1, 28940236), (2, 14470118), (4, 7235059), (13, 2226172), (26, 1113086), (31, 933556), (52, 556543), (62, 466778), (124, 233389), (169, 171244), (338, 85622), (403, 71812), (676, 42811), (806, 35906), (1381, 20956), (1612, 17953), (2762, 10478), (5239, 5524)]