16531880

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2389}}^1$

素因数の和:2573

約数の個数: 32

約数和(自身を含む): 37427400

約数和(自身を除く): 20895520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 2389, 3460, 4778, 6920, 9556, 11945, 19112, 23890, 47780, 95560, 413297, 826594, 1653188, 2066485, 3306376, 4132970, 8265940, 16531880]

約数ペア:

[(1, 16531880), (2, 8265940), (4, 4132970), (5, 3306376), (8, 2066485), (10, 1653188), (20, 826594), (40, 413297), (173, 95560), (346, 47780), (692, 23890), (865, 19112), (1384, 11945), (1730, 9556), (2389, 6920), (3460, 4778)]