16264720

素因数分解:

$2^4\times 5^1\times {\mathrm{203309}}^1$

素因数の和:203322

約数の個数: 20

約数和(自身を含む): 37815660

約数和(自身を除く): 21550940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 203309, 406618, 813236, 1016545, 1626472, 2033090, 3252944, 4066180, 8132360, 16264720]

約数ペア:

[(1, 16264720), (2, 8132360), (4, 4066180), (5, 3252944), (8, 2033090), (10, 1626472), (16, 1016545), (20, 813236), (40, 406618), (80, 203309)]