20688003928

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{2039}}^1\times {\mathrm{66751}}^1$

素因数の和:68815

約数の個数: 32

約数和(自身を含む): 40852224000

約数和(自身を除く): 20164220072

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 2039, 4078, 8156, 16312, 38741, 66751, 77482, 133502, 154964, 267004, 309928, 534008, 1268269, 2536538, 5073076, 10146152, 136105289, 272210578, 544421156, 1088842312, 2586000491, 5172000982, 10344001964, 20688003928]

約数ペア:

[(1, 20688003928), (2, 10344001964), (4, 5172000982), (8, 2586000491), (19, 1088842312), (38, 544421156), (76, 272210578), (152, 136105289), (2039, 10146152), (4078, 5073076), (8156, 2536538), (16312, 1268269), (38741, 534008), (66751, 309928), (77482, 267004), (133502, 154964)]