20201990

素因数分解:

$2^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{12097}}^1$

素因数の和:12271

約数の個数: 16

約数和(自身を含む): 36584352

約数和(自身を除く): 16382362

約数列:

[1, 2, 5, 10, 167, 334, 835, 1670, 12097, 24194, 60485, 120970, 2020199, 4040398, 10100995, 20201990]

約数ペア:

[(1, 20201990), (2, 10100995), (5, 4040398), (10, 2020199), (167, 120970), (334, 60485), (835, 24194), (1670, 12097)]