66615440

素因数分解:

$2^4\times 5^1\times {\mathrm{832693}}^1$

素因数の和:832706

約数の個数: 20

約数和(自身を含む): 154881084

約数和(自身を除く): 88265644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 832693, 1665386, 3330772, 4163465, 6661544, 8326930, 13323088, 16653860, 33307720, 66615440]

約数ペア:

[(1, 66615440), (2, 33307720), (4, 16653860), (5, 13323088), (8, 8326930), (10, 6661544), (16, 4163465), (20, 3330772), (40, 1665386), (80, 832693)]