81853408

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28109}}^1$

素因数の和:28139

約数の個数: 48

約数和(自身を含む): 198344160

約数和(自身を除く): 116490752

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 28109, 56218, 112436, 196763, 224872, 365417, 393526, 449744, 730834, 787052, 899488, 1461668, 1574104, 2557919, 2923336, 3148208, 5115838, 5846672, 6296416, 10231676, 11693344, 20463352, 40926704, 81853408]

約数ペア:

[(1, 81853408), (2, 40926704), (4, 20463352), (7, 11693344), (8, 10231676), (13, 6296416), (14, 5846672), (16, 5115838), (26, 3148208), (28, 2923336), (32, 2557919), (52, 1574104), (56, 1461668), (91, 899488), (104, 787052), (112, 730834), (182, 449744), (208, 393526), (224, 365417), (364, 224872), (416, 196763), (728, 112436), (1456, 56218), (2912, 28109)]