1626640

素因数分解:

$2^4\times 5^1\times {\mathrm{20333}}^1$

素因数の和:20346

約数の個数: 20

約数和(自身を含む): 3782124

約数和(自身を除く): 2155484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 20333, 40666, 81332, 101665, 162664, 203330, 325328, 406660, 813320, 1626640]

約数ペア:

[(1, 1626640), (2, 813320), (4, 406660), (5, 325328), (8, 203330), (10, 162664), (16, 101665), (20, 81332), (40, 40666), (80, 20333)]