647278328

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{8861}}^1$

素因数の和:9287

約数の個数: 32

約数和(自身を含む): 1269747360

約数和(自身を除く): 622469032

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 397, 794, 1588, 3176, 8861, 9131, 17722, 18262, 35444, 36524, 70888, 73048, 203803, 407606, 815212, 1630424, 3517817, 7035634, 14071268, 28142536, 80909791, 161819582, 323639164, 647278328]

約数ペア:

[(1, 647278328), (2, 323639164), (4, 161819582), (8, 80909791), (23, 28142536), (46, 14071268), (92, 7035634), (184, 3517817), (397, 1630424), (794, 815212), (1588, 407606), (3176, 203803), (8861, 73048), (9131, 70888), (17722, 36524), (18262, 35444)]