25780975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{389}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 35109360

約数和(自身を除く): 9328385

約数列:

[1, 5, 11, 25, 55, 241, 275, 389, 1205, 1945, 2651, 4279, 6025, 9725, 13255, 21395, 66275, 93749, 106975, 468745, 1031239, 2343725, 5156195, 25780975]

約数ペア:

[(1, 25780975), (5, 5156195), (11, 2343725), (25, 1031239), (55, 468745), (241, 106975), (275, 93749), (389, 66275), (1205, 21395), (1945, 13255), (2651, 9725), (4279, 6025)]