18158440

素因数分解:

$2^3\times 5^1\times {\mathrm{453961}}^1$

素因数の和:453972

約数の個数: 16

約数和(自身を含む): 40856580

約数和(自身を除く): 22698140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 453961, 907922, 1815844, 2269805, 3631688, 4539610, 9079220, 18158440]

約数ペア:

[(1, 18158440), (2, 9079220), (4, 4539610), (5, 3631688), (8, 2269805), (10, 1815844), (20, 907922), (40, 453961)]