18452420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1033

約数の個数: 72

約数和(自身を含む): 47496960

約数和(自身を除く): 29044540

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 991, 1330, 1862, 1982, 2660, 3724, 3964, 4655, 4955, 6937, 9310, 9910, 13874, 18620, 18829, 19820, 27748, 34685, 37658, 48559, 69370, 75316, 94145, 97118, 131803, 138740, 188290, 194236, 242795, 263606, 376580, 485590, 527212, 659015, 922621, 971180, 1318030, 1845242, 2636060, 3690484, 4613105, 9226210, 18452420]

約数ペア:

[(1, 18452420), (2, 9226210), (4, 4613105), (5, 3690484), (7, 2636060), (10, 1845242), (14, 1318030), (19, 971180), (20, 922621), (28, 659015), (35, 527212), (38, 485590), (49, 376580), (70, 263606), (76, 242795), (95, 194236), (98, 188290), (133, 138740), (140, 131803), (190, 97118), (196, 94145), (245, 75316), (266, 69370), (380, 48559), (490, 37658), (532, 34685), (665, 27748), (931, 19820), (980, 18829), (991, 18620), (1330, 13874), (1862, 9910), (1982, 9310), (2660, 6937), (3724, 4955), (3964, 4655)]