81261796

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37691}}^1$

素因数の和:37720

約数の個数: 36

約数和(自身を含む): 180469296

約数和(自身を除く): 99207500

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 37691, 75382, 150764, 263837, 414601, 527674, 829202, 1055348, 1658404, 1846859, 2902207, 3693718, 5804414, 7387436, 11608828, 20315449, 40630898, 81261796]

約数ペア:

[(1, 81261796), (2, 40630898), (4, 20315449), (7, 11608828), (11, 7387436), (14, 5804414), (22, 3693718), (28, 2902207), (44, 1846859), (49, 1658404), (77, 1055348), (98, 829202), (154, 527674), (196, 414601), (308, 263837), (539, 150764), (1078, 75382), (2156, 37691)]