20734610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12269}}^1$

素因数の和:12302

約数の個数: 24

約数和(自身を含む): 40417380

約数和(自身を除く): 19682770

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 12269, 24538, 61345, 122690, 159497, 318994, 797485, 1594970, 2073461, 4146922, 10367305, 20734610]

約数ペア:

[(1, 20734610), (2, 10367305), (5, 4146922), (10, 2073461), (13, 1594970), (26, 797485), (65, 318994), (130, 159497), (169, 122690), (338, 61345), (845, 24538), (1690, 12269)]