19495720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21191}}^1$

素因数の和:21225

約数の個数: 32

約数和(自身を含む): 45774720

約数和(自身を除く): 26279000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21191, 42382, 84764, 105955, 169528, 211910, 423820, 487393, 847640, 974786, 1949572, 2436965, 3899144, 4873930, 9747860, 19495720]

約数ペア:

[(1, 19495720), (2, 9747860), (4, 4873930), (5, 3899144), (8, 2436965), (10, 1949572), (20, 974786), (23, 847640), (40, 487393), (46, 423820), (92, 211910), (115, 169528), (184, 105955), (230, 84764), (460, 42382), (920, 21191)]