20089940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77269}}^1$

素因数の和:77291

約数の個数: 24

約数和(自身を含む): 45434760

約数和(自身を除く): 25344820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77269, 154538, 309076, 386345, 772690, 1004497, 1545380, 2008994, 4017988, 5022485, 10044970, 20089940]

約数ペア:

[(1, 20089940), (2, 10044970), (4, 5022485), (5, 4017988), (10, 2008994), (13, 1545380), (20, 1004497), (26, 772690), (52, 386345), (65, 309076), (130, 154538), (260, 77269)]