128487920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{146009}}^1$

素因数の和:146033

約数の個数: 40

約数和(自身を含む): 325894320

約数和(自身を除く): 197406400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 146009, 292018, 584036, 730045, 1168072, 1460090, 1606099, 2336144, 2920180, 3212198, 5840360, 6424396, 8030495, 11680720, 12848792, 16060990, 25697584, 32121980, 64243960, 128487920]

約数ペア:

[(1, 128487920), (2, 64243960), (4, 32121980), (5, 25697584), (8, 16060990), (10, 12848792), (11, 11680720), (16, 8030495), (20, 6424396), (22, 5840360), (40, 3212198), (44, 2920180), (55, 2336144), (80, 1606099), (88, 1460090), (110, 1168072), (176, 730045), (220, 584036), (440, 292018), (880, 146009)]