164851540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{2879}}^1$

素因数の和:3304

約数の個数: 48

約数和(自身を含む): 396748800

約数和(自身を除く): 231897260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 409, 818, 1636, 2045, 2863, 2879, 4090, 5726, 5758, 8180, 11452, 11516, 14315, 14395, 20153, 28630, 28790, 40306, 57260, 57580, 80612, 100765, 201530, 403060, 1177511, 2355022, 4710044, 5887555, 8242577, 11775110, 16485154, 23550220, 32970308, 41212885, 82425770, 164851540]

約数ペア:

[(1, 164851540), (2, 82425770), (4, 41212885), (5, 32970308), (7, 23550220), (10, 16485154), (14, 11775110), (20, 8242577), (28, 5887555), (35, 4710044), (70, 2355022), (140, 1177511), (409, 403060), (818, 201530), (1636, 100765), (2045, 80612), (2863, 57580), (2879, 57260), (4090, 40306), (5726, 28790), (5758, 28630), (8180, 20153), (11452, 14395), (11516, 14315)]