28276420

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{4517}}^1$

素因数の和:4839

約数の個数: 24

約数和(自身を含む): 59583384

約数和(自身を除く): 31306964

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 3130, 4517, 6260, 9034, 18068, 22585, 45170, 90340, 1413821, 2827642, 5655284, 7069105, 14138210, 28276420]

約数ペア:

[(1, 28276420), (2, 14138210), (4, 7069105), (5, 5655284), (10, 2827642), (20, 1413821), (313, 90340), (626, 45170), (1252, 22585), (1565, 18068), (3130, 9034), (4517, 6260)]