128873240

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{9127}}^1$

素因数の和:9491

約数の個数: 32

約数和(自身を含む): 290818080

約数和(自身を除く): 161944840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2824, 3530, 7060, 9127, 14120, 18254, 36508, 45635, 73016, 91270, 182540, 365080, 3221831, 6443662, 12887324, 16109155, 25774648, 32218310, 64436620, 128873240]

約数ペア:

[(1, 128873240), (2, 64436620), (4, 32218310), (5, 25774648), (8, 16109155), (10, 12887324), (20, 6443662), (40, 3221831), (353, 365080), (706, 182540), (1412, 91270), (1765, 73016), (2824, 45635), (3530, 36508), (7060, 18254), (9127, 14120)]