18517040

素因数分解:

$2^4\times 5^1\times {\mathrm{231463}}^1$

素因数の和:231476

約数の個数: 20

約数和(自身を含む): 43052304

約数和(自身を除く): 24535264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 231463, 462926, 925852, 1157315, 1851704, 2314630, 3703408, 4629260, 9258520, 18517040]

約数ペア:

[(1, 18517040), (2, 9258520), (4, 4629260), (5, 3703408), (8, 2314630), (10, 1851704), (16, 1157315), (20, 925852), (40, 462926), (80, 231463)]