28820860

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{8629}}^1$

素因数の和:8805

約数の個数: 24

約数和(自身を含む): 60893280

約数和(自身を除く): 32072420

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 8629, 17258, 34516, 43145, 86290, 172580, 1441043, 2882086, 5764172, 7205215, 14410430, 28820860]

約数ペア:

[(1, 28820860), (2, 14410430), (4, 7205215), (5, 5764172), (10, 2882086), (20, 1441043), (167, 172580), (334, 86290), (668, 43145), (835, 34516), (1670, 17258), (3340, 8629)]