678889205

素因数分解:

$5^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1\times {\mathrm{6469}}^1$

素因数の和:6764

約数の個数: 16

約数和(自身を含む): 826089600

約数和(自身を除く): 147200395

約数列:

[1, 5, 139, 151, 695, 755, 6469, 20989, 32345, 104945, 899191, 976819, 4495955, 4884095, 135777841, 678889205]

約数ペア:

[(1, 678889205), (5, 135777841), (139, 4884095), (151, 4495955), (695, 976819), (755, 899191), (6469, 104945), (20989, 32345)]