426548590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{20899}}^1$

素因数の和:21076

約数の個数: 32

約数和(自身を含む): 832154400

約数和(自身を除く): 405605810

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 314, 785, 1570, 2041, 4082, 10205, 20410, 20899, 41798, 104495, 208990, 271687, 543374, 1358435, 2716870, 3281143, 6562286, 16405715, 32811430, 42654859, 85309718, 213274295, 426548590]

約数ペア:

[(1, 426548590), (2, 213274295), (5, 85309718), (10, 42654859), (13, 32811430), (26, 16405715), (65, 6562286), (130, 3281143), (157, 2716870), (314, 1358435), (785, 543374), (1570, 271687), (2041, 208990), (4082, 104495), (10205, 41798), (20410, 20899)]