16081720

素因数分解:

$2^3\times 5^1\times {\mathrm{402043}}^1$

素因数の和:402054

約数の個数: 16

約数和(自身を含む): 36183960

約数和(自身を除く): 20102240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 402043, 804086, 1608172, 2010215, 3216344, 4020430, 8040860, 16081720]

約数ペア:

[(1, 16081720), (2, 8040860), (4, 4020430), (5, 3216344), (8, 2010215), (10, 1608172), (20, 804086), (40, 402043)]