20353864

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{373}}^1$

素因数の和:757

約数の個数: 32

約数和(自身を含む): 40392000

約数和(自身を除く): 20038136

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 359, 373, 718, 746, 1436, 1492, 2872, 2984, 6821, 7087, 13642, 14174, 27284, 28348, 54568, 56696, 133907, 267814, 535628, 1071256, 2544233, 5088466, 10176932, 20353864]

約数ペア:

[(1, 20353864), (2, 10176932), (4, 5088466), (8, 2544233), (19, 1071256), (38, 535628), (76, 267814), (152, 133907), (359, 56696), (373, 54568), (718, 28348), (746, 27284), (1436, 14174), (1492, 13642), (2872, 7087), (2984, 6821)]