80803175

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1$

素因数の和:503

約数の個数: 24

約数和(自身を含む): 102493440

約数和(自身を除く): 21690265

約数列:

[1, 5, 25, 79, 163, 251, 395, 815, 1255, 1975, 4075, 6275, 12877, 19829, 40913, 64385, 99145, 204565, 321925, 495725, 1022825, 3232127, 16160635, 80803175]

約数ペア:

[(1, 80803175), (5, 16160635), (25, 3232127), (79, 1022825), (163, 495725), (251, 321925), (395, 204565), (815, 99145), (1255, 64385), (1975, 40913), (4075, 19829), (6275, 12877)]