31028485

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 40118760

約数和(自身を除く): 9090275

約数列:

[1, 5, 17, 85, 109, 197, 289, 545, 985, 1445, 1853, 3349, 9265, 16745, 21473, 31501, 56933, 107365, 157505, 284665, 365041, 1825205, 6205697, 31028485]

約数ペア:

[(1, 31028485), (5, 6205697), (17, 1825205), (85, 365041), (109, 284665), (197, 157505), (289, 107365), (545, 56933), (985, 31501), (1445, 21473), (1853, 16745), (3349, 9265)]