81997804

素因数分解:

$2^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{23059}}^1$

素因数の和:23197

約数の個数: 24

約数和(自身を含む): 165294080

約数和(自身を除く): 83296276

約数列:

[1, 2, 4, 7, 14, 28, 127, 254, 508, 889, 1778, 3556, 23059, 46118, 92236, 161413, 322826, 645652, 2928493, 5856986, 11713972, 20499451, 40998902, 81997804]

約数ペア:

[(1, 81997804), (2, 40998902), (4, 20499451), (7, 11713972), (14, 5856986), (28, 2928493), (127, 645652), (254, 322826), (508, 161413), (889, 92236), (1778, 46118), (3556, 23059)]