18899560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20543}}^1$

素因数の和:20577

約数の個数: 32

約数和(自身を含む): 44375040

約数和(自身を除く): 25475480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 20543, 41086, 82172, 102715, 164344, 205430, 410860, 472489, 821720, 944978, 1889956, 2362445, 3779912, 4724890, 9449780, 18899560]

約数ペア:

[(1, 18899560), (2, 9449780), (4, 4724890), (5, 3779912), (8, 2362445), (10, 1889956), (20, 944978), (23, 821720), (40, 472489), (46, 410860), (92, 205430), (115, 164344), (184, 102715), (230, 82172), (460, 41086), (920, 20543)]