20123986160

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10936949}}^1$

素因数の和:10936985

約数の個数: 40

約数和(自身を含む): 48822544800

約数和(自身を除く): 28698558640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 10936949, 21873898, 43747796, 54684745, 87495592, 109369490, 174991184, 218738980, 251549827, 437477960, 503099654, 874955920, 1006199308, 1257749135, 2012398616, 2515498270, 4024797232, 5030996540, 10061993080, 20123986160]

約数ペア:

[(1, 20123986160), (2, 10061993080), (4, 5030996540), (5, 4024797232), (8, 2515498270), (10, 2012398616), (16, 1257749135), (20, 1006199308), (23, 874955920), (40, 503099654), (46, 437477960), (80, 251549827), (92, 218738980), (115, 174991184), (184, 109369490), (230, 87495592), (368, 54684745), (460, 43747796), (920, 21873898), (1840, 10936949)]