20415338

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{823}}^1$

素因数の和:1061

約数の個数: 16

約数和(自身を含む): 31246080

約数和(自身を除く): 10830742

約数列:

[1, 2, 79, 157, 158, 314, 823, 1646, 12403, 24806, 65017, 129211, 130034, 258422, 10207669, 20415338]

約数ペア:

[(1, 20415338), (2, 10207669), (79, 258422), (157, 130034), (158, 129211), (314, 65017), (823, 24806), (1646, 12403)]