28477520

素因数分解:

$2^4\times 5^1\times {\mathrm{355969}}^1$

素因数の和:355982

約数の個数: 20

約数和(自身を含む): 66210420

約数和(自身を除く): 37732900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 355969, 711938, 1423876, 1779845, 2847752, 3559690, 5695504, 7119380, 14238760, 28477520]

約数ペア:

[(1, 28477520), (2, 14238760), (4, 7119380), (5, 5695504), (8, 3559690), (10, 2847752), (16, 1779845), (20, 1423876), (40, 711938), (80, 355969)]