2097080

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{509}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 4773600

約数和(自身を除く): 2676520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 509, 515, 824, 1018, 1030, 2036, 2060, 2545, 4072, 4120, 5090, 10180, 20360, 52427, 104854, 209708, 262135, 419416, 524270, 1048540, 2097080]

約数ペア:

[(1, 2097080), (2, 1048540), (4, 524270), (5, 419416), (8, 262135), (10, 209708), (20, 104854), (40, 52427), (103, 20360), (206, 10180), (412, 5090), (509, 4120), (515, 4072), (824, 2545), (1018, 2060), (1030, 2036)]