81364478

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{359}}^1\times {\mathrm{379}}^1$

素因数の和:776

約数の個数: 32

約数和(自身を含む): 137894400

約数和(自身を除く): 56529922

約数列:

[1, 2, 13, 23, 26, 46, 299, 359, 379, 598, 718, 758, 4667, 4927, 8257, 8717, 9334, 9854, 16514, 17434, 107341, 113321, 136061, 214682, 226642, 272122, 1768793, 3129403, 3537586, 6258806, 40682239, 81364478]

約数ペア:

[(1, 81364478), (2, 40682239), (13, 6258806), (23, 3537586), (26, 3129403), (46, 1768793), (299, 272122), (359, 226642), (379, 214682), (598, 136061), (718, 113321), (758, 107341), (4667, 17434), (4927, 16514), (8257, 9854), (8717, 9334)]