40376780

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2459}}^1$

素因数の和:3289

約数の個数: 24

約数和(自身を含む): 84929040

約数和(自身を除く): 44552260

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 2459, 3284, 4105, 4918, 8210, 9836, 12295, 16420, 24590, 49180, 2018839, 4037678, 8075356, 10094195, 20188390, 40376780]

約数ペア:

[(1, 40376780), (2, 20188390), (4, 10094195), (5, 8075356), (10, 4037678), (20, 2018839), (821, 49180), (1642, 24590), (2459, 16420), (3284, 12295), (4105, 9836), (4918, 8210)]