91640720

素因数分解:

$2^4\times 5^1\times {\mathrm{1145509}}^1$

素因数の和:1145522

約数の個数: 20

約数和(自身を含む): 213064860

約数和(自身を除く): 121424140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1145509, 2291018, 4582036, 5727545, 9164072, 11455090, 18328144, 22910180, 45820360, 91640720]

約数ペア:

[(1, 91640720), (2, 45820360), (4, 22910180), (5, 18328144), (8, 11455090), (10, 9164072), (16, 5727545), (20, 4582036), (40, 2291018), (80, 1145509)]