20400952

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1049}}^1$

素因数の和:1096

約数の個数: 64

約数和(自身を含む): 47628000

約数和(自身を除く): 27227048

約数列:

[1, 2, 4, 8, 11, 13, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 187, 221, 286, 374, 442, 572, 748, 884, 1049, 1144, 1496, 1768, 2098, 2431, 4196, 4862, 8392, 9724, 11539, 13637, 17833, 19448, 23078, 27274, 35666, 46156, 54548, 71332, 92312, 109096, 142664, 150007, 196163, 231829, 300014, 392326, 463658, 600028, 784652, 927316, 1200056, 1569304, 1854632, 2550119, 5100238, 10200476, 20400952]

約数ペア:

[(1, 20400952), (2, 10200476), (4, 5100238), (8, 2550119), (11, 1854632), (13, 1569304), (17, 1200056), (22, 927316), (26, 784652), (34, 600028), (44, 463658), (52, 392326), (68, 300014), (88, 231829), (104, 196163), (136, 150007), (143, 142664), (187, 109096), (221, 92312), (286, 71332), (374, 54548), (442, 46156), (572, 35666), (748, 27274), (884, 23078), (1049, 19448), (1144, 17833), (1496, 13637), (1768, 11539), (2098, 9724), (2431, 8392), (4196, 4862)]