11271920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{12809}}^1$

素因数の和:12833

約数の個数: 40

約数和(自身を含む): 28591920

約数和(自身を除く): 17320000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 12809, 25618, 51236, 64045, 102472, 128090, 140899, 204944, 256180, 281798, 512360, 563596, 704495, 1024720, 1127192, 1408990, 2254384, 2817980, 5635960, 11271920]

約数ペア:

[(1, 11271920), (2, 5635960), (4, 2817980), (5, 2254384), (8, 1408990), (10, 1127192), (11, 1024720), (16, 704495), (20, 563596), (22, 512360), (40, 281798), (44, 256180), (55, 204944), (80, 140899), (88, 128090), (110, 102472), (176, 64045), (220, 51236), (440, 25618), (880, 12809)]