145661260

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{17807}}^1$

素因数の和:18225

約数の個数: 24

約数和(自身を含む): 306653760

約数和(自身を除く): 160992500

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 17807, 35614, 71228, 89035, 178070, 356140, 7283063, 14566126, 29132252, 36415315, 72830630, 145661260]

約数ペア:

[(1, 145661260), (2, 72830630), (4, 36415315), (5, 29132252), (10, 14566126), (20, 7283063), (409, 356140), (818, 178070), (1636, 89035), (2045, 71228), (4090, 35614), (8180, 17807)]