157120

素因数分解:

$2^6\times 5^1\times {\mathrm{491}}^1$

素因数の和:508

約数の個数: 28

約数和(自身を含む): 374904

約数和(自身を除く): 217784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 491, 982, 1964, 2455, 3928, 4910, 7856, 9820, 15712, 19640, 31424, 39280, 78560, 157120]

約数ペア:

[(1, 157120), (2, 78560), (4, 39280), (5, 31424), (8, 19640), (10, 15712), (16, 9820), (20, 7856), (32, 4910), (40, 3928), (64, 2455), (80, 1964), (160, 982), (320, 491)]