158640964

素因数分解:

$2^2\times {\mathrm{157}}^2\times {\mathrm{1609}}^1$

素因数の和:1927

約数の個数: 18

約数和(自身を含む): 279574890

約数和(自身を除く): 120933926

約数列:

[1, 2, 4, 157, 314, 628, 1609, 3218, 6436, 24649, 49298, 98596, 252613, 505226, 1010452, 39660241, 79320482, 158640964]

約数ペア:

[(1, 158640964), (2, 79320482), (4, 39660241), (157, 1010452), (314, 505226), (628, 252613), (1609, 98596), (3218, 49298), (6436, 24649)]