1253216420

素因数分解:

$2^2\times 5^1\times {\mathrm{4507}}^1\times {\mathrm{13903}}^1$

素因数の和:18419

約数の個数: 24

約数和(自身を含む): 2632527744

約数和(自身を除く): 1379311324

約数列:

[1, 2, 4, 5, 10, 20, 4507, 9014, 13903, 18028, 22535, 27806, 45070, 55612, 69515, 90140, 139030, 278060, 62660821, 125321642, 250643284, 313304105, 626608210, 1253216420]

約数ペア:

[(1, 1253216420), (2, 626608210), (4, 313304105), (5, 250643284), (10, 125321642), (20, 62660821), (4507, 278060), (9014, 139030), (13903, 90140), (18028, 69515), (22535, 55612), (27806, 45070)]