1640607740

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{412213}}^1$

素因数の和:412421

約数の個数: 24

約数和(自身を含む): 3462597600

約数和(自身を除く): 1821989860

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 412213, 824426, 1648852, 2061065, 4122130, 8244260, 82030387, 164060774, 328121548, 410151935, 820303870, 1640607740]

約数ペア:

[(1, 1640607740), (2, 820303870), (4, 410151935), (5, 328121548), (10, 164060774), (20, 82030387), (199, 8244260), (398, 4122130), (796, 2061065), (995, 1648852), (1990, 824426), (3980, 412213)]