218970260

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{123017}}^1$

素因数の和:123115

約数の個数: 24

約数和(自身を含む): 465008040

約数和(自身を除く): 246037780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 123017, 246034, 492068, 615085, 1230170, 2460340, 10948513, 21897026, 43794052, 54742565, 109485130, 218970260]

約数ペア:

[(1, 218970260), (2, 109485130), (4, 54742565), (5, 43794052), (10, 21897026), (20, 10948513), (89, 2460340), (178, 1230170), (356, 615085), (445, 492068), (890, 246034), (1780, 123017)]