208021280

素因数分解:

$2^5\times 5^1\times {\mathrm{1300133}}^1$

素因数の和:1300148

約数の個数: 24

約数和(自身を含む): 491450652

約数和(自身を除く): 283429372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1300133, 2600266, 5200532, 6500665, 10401064, 13001330, 20802128, 26002660, 41604256, 52005320, 104010640, 208021280]

約数ペア:

[(1, 208021280), (2, 104010640), (4, 52005320), (5, 41604256), (8, 26002660), (10, 20802128), (16, 13001330), (20, 10401064), (32, 6500665), (40, 5200532), (80, 2600266), (160, 1300133)]