81671408

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{56093}}^1$

素因数の和:56121

約数の個数: 40

約数和(自身を含む): 194758368

約数和(自身を除く): 113086960

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 56093, 112186, 224372, 392651, 448744, 729209, 785302, 897488, 1458418, 1570604, 2916836, 3141208, 5104463, 5833672, 6282416, 10208926, 11667344, 20417852, 40835704, 81671408]

約数ペア:

[(1, 81671408), (2, 40835704), (4, 20417852), (7, 11667344), (8, 10208926), (13, 6282416), (14, 5833672), (16, 5104463), (26, 3141208), (28, 2916836), (52, 1570604), (56, 1458418), (91, 897488), (104, 785302), (112, 729209), (182, 448744), (208, 392651), (364, 224372), (728, 112186), (1456, 56093)]