19885040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35509}}^1$

素因数の和:35529

約数の個数: 40

約数和(自身を含む): 52838880

約数和(自身を除く): 32953840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35509, 71018, 142036, 177545, 248563, 284072, 355090, 497126, 568144, 710180, 994252, 1242815, 1420360, 1988504, 2485630, 2840720, 3977008, 4971260, 9942520, 19885040]

約数ペア:

[(1, 19885040), (2, 9942520), (4, 4971260), (5, 3977008), (7, 2840720), (8, 2485630), (10, 1988504), (14, 1420360), (16, 1242815), (20, 994252), (28, 710180), (35, 568144), (40, 497126), (56, 355090), (70, 284072), (80, 248563), (112, 177545), (140, 142036), (280, 71018), (560, 35509)]