19428560

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10559}}^1$

素因数の和:10595

約数の個数: 40

約数和(自身を含む): 47139840

約数和(自身を除く): 27711280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 10559, 21118, 42236, 52795, 84472, 105590, 168944, 211180, 242857, 422360, 485714, 844720, 971428, 1214285, 1942856, 2428570, 3885712, 4857140, 9714280, 19428560]

約数ペア:

[(1, 19428560), (2, 9714280), (4, 4857140), (5, 3885712), (8, 2428570), (10, 1942856), (16, 1214285), (20, 971428), (23, 844720), (40, 485714), (46, 422360), (80, 242857), (92, 211180), (115, 168944), (184, 105590), (230, 84472), (368, 52795), (460, 42236), (920, 21118), (1840, 10559)]