28073305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 38374560

約数和(自身を除く): 10301255

約数列:

[1, 5, 13, 29, 53, 65, 145, 265, 281, 377, 689, 1405, 1537, 1885, 3445, 3653, 7685, 8149, 14893, 18265, 19981, 40745, 74465, 99905, 105937, 193609, 431897, 529685, 968045, 2159485, 5614661, 28073305]

約数ペア:

[(1, 28073305), (5, 5614661), (13, 2159485), (29, 968045), (53, 529685), (65, 431897), (145, 193609), (265, 105937), (281, 99905), (377, 74465), (689, 40745), (1405, 19981), (1537, 18265), (1885, 14893), (3445, 8149), (3653, 7685)]