66421280

素因数分解:

$2^5\times 5^1\times {\mathrm{415133}}^1$

素因数の和:415148

約数の個数: 24

約数和(自身を含む): 156920652

約数和(自身を除く): 90499372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 415133, 830266, 1660532, 2075665, 3321064, 4151330, 6642128, 8302660, 13284256, 16605320, 33210640, 66421280]

約数ペア:

[(1, 66421280), (2, 33210640), (4, 16605320), (5, 13284256), (8, 8302660), (10, 6642128), (16, 4151330), (20, 3321064), (32, 2075665), (40, 1660532), (80, 830266), (160, 415133)]