81355184

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{40037}}^1$

素因数の和:40172

約数の個数: 20

約数和(自身を含む): 158870784

約数和(自身を除く): 77515600

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 40037, 80074, 160148, 320296, 640592, 5084699, 10169398, 20338796, 40677592, 81355184]

約数ペア:

[(1, 81355184), (2, 40677592), (4, 20338796), (8, 10169398), (16, 5084699), (127, 640592), (254, 320296), (508, 160148), (1016, 80074), (2032, 40037)]