25278448

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{121531}}^1$

素因数の和:121552

約数の個数: 20

約数和(自身を含む): 52744888

約数和(自身を除く): 27466440

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 121531, 243062, 486124, 972248, 1579903, 1944496, 3159806, 6319612, 12639224, 25278448]

約数ペア:

[(1, 25278448), (2, 12639224), (4, 6319612), (8, 3159806), (13, 1944496), (16, 1579903), (26, 972248), (52, 486124), (104, 243062), (208, 121531)]