39943480

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9887}}^1$

素因数の和:9999

約数の個数: 32

約数和(自身を含む): 90771840

約数和(自身を除く): 50828360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 9887, 19774, 39548, 49435, 79096, 98870, 197740, 395480, 998587, 1997174, 3994348, 4992935, 7988696, 9985870, 19971740, 39943480]

約数ペア:

[(1, 39943480), (2, 19971740), (4, 9985870), (5, 7988696), (8, 4992935), (10, 3994348), (20, 1997174), (40, 998587), (101, 395480), (202, 197740), (404, 98870), (505, 79096), (808, 49435), (1010, 39548), (2020, 19774), (4040, 9887)]