10280720

素因数分解:

$2^4\times 5^1\times {\mathrm{128509}}^1$

素因数の和:128522

約数の個数: 20

約数和(自身を含む): 23902860

約数和(自身を除く): 13622140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 128509, 257018, 514036, 642545, 1028072, 1285090, 2056144, 2570180, 5140360, 10280720]

約数ペア:

[(1, 10280720), (2, 5140360), (4, 2570180), (5, 2056144), (8, 1285090), (10, 1028072), (16, 642545), (20, 514036), (40, 257018), (80, 128509)]