18894560

素因数分解:

$2^5\times 5^1\times {\mathrm{269}}^1\times {\mathrm{439}}^1$

素因数の和:723

約数の個数: 48

約数和(自身を含む): 44906400

約数和(自身を除く): 26011840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 269, 439, 538, 878, 1076, 1345, 1756, 2152, 2195, 2690, 3512, 4304, 4390, 5380, 7024, 8608, 8780, 10760, 14048, 17560, 21520, 35120, 43040, 70240, 118091, 236182, 472364, 590455, 944728, 1180910, 1889456, 2361820, 3778912, 4723640, 9447280, 18894560]

約数ペア:

[(1, 18894560), (2, 9447280), (4, 4723640), (5, 3778912), (8, 2361820), (10, 1889456), (16, 1180910), (20, 944728), (32, 590455), (40, 472364), (80, 236182), (160, 118091), (269, 70240), (439, 43040), (538, 35120), (878, 21520), (1076, 17560), (1345, 14048), (1756, 10760), (2152, 8780), (2195, 8608), (2690, 7024), (3512, 5380), (4304, 4390)]