81561424

素因数分解:

$2^4\times 7^1\times {\mathrm{821}}^1\times {\mathrm{887}}^1$

素因数の和:1723

約数の個数: 40

約数和(自身を含む): 181024128

約数和(自身を除く): 99462704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 821, 887, 1642, 1774, 3284, 3548, 5747, 6209, 6568, 7096, 11494, 12418, 13136, 14192, 22988, 24836, 45976, 49672, 91952, 99344, 728227, 1456454, 2912908, 5097589, 5825816, 10195178, 11651632, 20390356, 40780712, 81561424]

約数ペア:

[(1, 81561424), (2, 40780712), (4, 20390356), (7, 11651632), (8, 10195178), (14, 5825816), (16, 5097589), (28, 2912908), (56, 1456454), (112, 728227), (821, 99344), (887, 91952), (1642, 49672), (1774, 45976), (3284, 24836), (3548, 22988), (5747, 14192), (6209, 13136), (6568, 12418), (7096, 11494)]