20413792

素因数分解:

$2^5\times 7^2\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:348

約数の個数: 72

約数和(自身を含む): 47918304

約数和(自身を除く): 27504512

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 49, 56, 94, 98, 112, 188, 196, 224, 277, 329, 376, 392, 554, 658, 752, 784, 1108, 1316, 1504, 1568, 1939, 2216, 2303, 2632, 3878, 4432, 4606, 5264, 7756, 8864, 9212, 10528, 13019, 13573, 15512, 18424, 26038, 27146, 31024, 36848, 52076, 54292, 62048, 73696, 91133, 104152, 108584, 182266, 208304, 217168, 364532, 416608, 434336, 637931, 729064, 1275862, 1458128, 2551724, 2916256, 5103448, 10206896, 20413792]

約数ペア:

[(1, 20413792), (2, 10206896), (4, 5103448), (7, 2916256), (8, 2551724), (14, 1458128), (16, 1275862), (28, 729064), (32, 637931), (47, 434336), (49, 416608), (56, 364532), (94, 217168), (98, 208304), (112, 182266), (188, 108584), (196, 104152), (224, 91133), (277, 73696), (329, 62048), (376, 54292), (392, 52076), (554, 36848), (658, 31024), (752, 27146), (784, 26038), (1108, 18424), (1316, 15512), (1504, 13573), (1568, 13019), (1939, 10528), (2216, 9212), (2303, 8864), (2632, 7756), (3878, 5264), (4432, 4606)]