20363020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16691}}^1$

素因数の和:16761

約数の個数: 24

約数和(自身を含む): 43465968

約数和(自身を除く): 23102948

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 16691, 33382, 66764, 83455, 166910, 333820, 1018151, 2036302, 4072604, 5090755, 10181510, 20363020]

約数ペア:

[(1, 20363020), (2, 10181510), (4, 5090755), (5, 4072604), (10, 2036302), (20, 1018151), (61, 333820), (122, 166910), (244, 83455), (305, 66764), (610, 33382), (1220, 16691)]