16317680

素因数分解:

$2^4\times 5^1\times {\mathrm{203971}}^1$

素因数の和:203984

約数の個数: 20

約数和(自身を含む): 37938792

約数和(自身を除く): 21621112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 203971, 407942, 815884, 1019855, 1631768, 2039710, 3263536, 4079420, 8158840, 16317680]

約数ペア:

[(1, 16317680), (2, 8158840), (4, 4079420), (5, 3263536), (8, 2039710), (10, 1631768), (16, 1019855), (20, 815884), (40, 407942), (80, 203971)]