409889560

素因数分解:

$2^3\times 5^1\times {\mathrm{10247239}}^1$

素因数の和:10247250

約数の個数: 16

約数和(自身を含む): 922251600

約数和(自身を除く): 512362040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10247239, 20494478, 40988956, 51236195, 81977912, 102472390, 204944780, 409889560]

約数ペア:

[(1, 409889560), (2, 204944780), (4, 102472390), (5, 81977912), (8, 51236195), (10, 40988956), (20, 20494478), (40, 10247239)]