39560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:77

約数の個数: 32

約数和(自身を含む): 95040

約数和(自身を除く): 55480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 430, 460, 860, 920, 989, 1720, 1978, 3956, 4945, 7912, 9890, 19780, 39560]

約数ペア:

[(1, 39560), (2, 19780), (4, 9890), (5, 7912), (8, 4945), (10, 3956), (20, 1978), (23, 1720), (40, 989), (43, 920), (46, 860), (86, 460), (92, 430), (115, 344), (172, 230), (184, 215)]